How Much Oil To Fill In Gasoline For A Trimmer

What gasoline and oil is better to choose for refueling a Stihl chainsaw: a table of ratios, how to breed, proportions

The durability and reliability of the chainsaw is determined not only by the conditions of its operation, but also by the quality of the fuel used for refueling. In addition to the special conditions of use, when grinding parts in the first few refuelings, attention must also be paid to the quality of the fuel mixture.

How Much Oil To Fill In Gasoline For A Trimmer

Professional Chainsaws Stihl Equipped with two-stroke engines, requiring high-quality fuel. a metered mixture of high-octane gasoline and oil, designed for engine operation at high speeds. The correct choice of gasoline and oil for the Stihl chainsaw is the key to a long and successful operation of this unit.

Gasoline selection

The first question that the user faces before starting work is what gasoline to pour into the Stihl chainsaw.

Gasoline for the Stihl chainsaw is filled exclusively with unleaded high-octane gasoline, ie, with an octane number higher than 90. If you fill it with low-octane gasoline, it is fraught with engine overheating, piston seizure and engine failure. Therefore, it is optimal to pour AI-92 or AI-95 gasoline into the chainsaw, but here the question of fuel quality arises.

Low-quality AI-92 can “fall short” up to the declared octane number, and AI-95 often contains many additives, and not bringing any benefit to the engine. In addition, if the additives are of poor quality, they do not last long, and after a few days the purchased fuel can turn into low-octane, which is not suitable for a chainsaw engine.

At the same time, a good 95 can harm the piston system. “burn” it. Thus, some users found a way out: to refuel the chainsaw with AI-92 gasoline mixed with AI-95. This achieves an optimal balance between octane number and the amount of additives.

How to breed

Stihl Saw Fuel Mix is ​​prepared by mixing high-octane gasoline and two-stroke engine oil. The proportion of oil and gasoline for a chainsaw is as follows: if the power of the unit does not exceed 1.5 kW, then the ratio will be 1:40 (i.e. 25 ml of oil per liter of gasoline), and with a power higher than this value. 1:50 (20 ml for 1 l).

Looking at the table of proportions, let us analyze, using the example of two dust of different power, how to mix oil gasoline.

  • For the low-powered STIHL MS 180 with a 2-stroke engine, the dilution will be 1:40. Its fuel tank capacity is only 0.25 liters. In order to mix fuel with oil for one refueling, we need 6.25 ml of oil for 0.25 liters of gasoline.
  • For the heavy-duty professional chainsaw STIHL MS 660, the dilution of oil and gasoline must be carried out in a ratio of 1:50. In this model the volume of the fuel tank is 0.825 l. In order to understand how much oil to pour for such a volume of gasoline, multiply 0.825 by 20. It turns out that 16.5 ml of engine oil is required.

In practice, of course, it is not necessary to calculate what fate the lubricant will be diluted in the volume of gasoline per filling. Usually, the fuel mixture is diluted in a volume of 1-2 liters, which is enough for several refuelings of the chain saw.

You need to dilute gasoline for the Stihl chainsaw in a separate Canister, in no case do not pour the components into the saw’s gas tank separately. THESE engines have an oil pump and the ability to install it, so only ready fuel is poured into the tank. There are even special canisters with two necks on sale, so that it is more convenient to dilute the mixture, but you can add oil to gasoline for a chainsaw and in an ordinary Canister.

It is better to observe the proportions of refueling the chainsaw as accurately as possible: excess oil will create carbon deposits on the candles and pistons and provoke detonation during fuel combustion. This can shorten the engine life. In addition, the user of the saw in this case is forced to Inhale Exhaust gases from the unburned fraction. At the same time, excess gasoline can damage the pistons due to insufficient lubrication.

Some folk craftsmen, in case of the absence of special measuring accessories, advise using a plastic bottle: a full cap (from the same bottle) of oil is poured into a half-liter container filled with gasoline. The output is an approximate ratio of 1:50.

It is better to calculate the amount of mixture for refueling in advance. Based on the expected volume of work and the declared consumption of this engine. The volume of the tank in most chainsaws is about 0.5 liters, a 2 kW engine will consume approximately 1.2 liters during operation (for more precise characteristics of the saw, see the instructions). Thus, it makes no sense to prepare a mixture in volumes exceeding 3 fillings in a row.

Before starting the preparation of the mixture, it is recommended to thoroughly clean and dry the neck of the canister and the area around it in order to avoid the ingress of foreign impurities: dust, water, etc. so that it does not get into the gas tank, and then into the engine.

Ratios of gasoline and oil for the Stihl trimmer

Stihl, a German manufacturer of high-quality cutting tools, produces motor mowers in addition to chainsaws. An indispensable tool for mowing grass and lawn trimming, it is lightweight and mobile.

a lawn mower, or trimmer, also has a two-stroke engine and is fueled with a fuel mixture. For the Stihl trimmer, a ratio of 1:50 is recommended (for 5 liters of gasoline, 100 ml of oil).

Stihl oil

Stihl produces its own oil for its tools. High quality Stihl 2-stroke oil with high lubricity.

Consider the table of assortment of oils for chainsaws from the official website of Stihl.

Here we see two types of motor oils:

  • HP
  • Mineral base,
  • Has a shelf life of 4 years,
  • Minimum application temperature:.10 ° C
  • Available in volumes from 20 ml to 55 liters.
  • Hpultra
    • Synthetic,
    • Has a shelf life of 4 years,
    • Burns out completely in the piston group,
    • Bio-safe and more than 80% biodegradable in 21 days,
    • Low smoke,
    • Minimum application temperature:.25 ° C
    • Available in 100 ml and 1 l volumes.
    • The manufacturer also suggests in the description for lubricants how to dilute the mixture for refueling the saw. in a ratio of 1:50.

      Oil selection

      Unlike four-stroke engines, Stihl 180 chainsaw oil is poured directly into the gas tank, after being mixed with gasoline. It is recommended to fill the chainsaw with oil specified in the instructions for this model.

      It can significantly reduce the life of the engine, and if traces of such a substance in the cylinder-piston group are found, the tool will be considered withdrawn from the warranty, i.e. it will no longer be subject to warranty repair or exchange.

      Synthetic and mineral oils for Stihl chainsaws are sold in bottles or cans in different capacities: from 100 ml to 5 liters. Mineral ones have a lower cost, while semi-synthetic and synthetic ones provide complete combustion during engine operation, i.e. no carbon deposits and a minimum of toxic compounds in the exhaust.

      In addition, synthetic oils retain their properties over a much wider temperature range, and also contain special additives that are useful for engine operation: antioxidant, detergent, preservative, etc.

      You can choose engine oil for your tasks depending on the saw model and the frequency of its use: the oil consumption during the operation of the device is low, and Given the shelf life of semi-synthetic and mineral lubricants, there is a risk of simply not having time to use even a liter bottle to the end.

      So, with a small estimated volume of work, one cannot but buy a bulk canister, but limit oneself to a bottle. Only Stihl mineral greases do not have an expiration date.

      Useful Tips

      When calculating the proportions, remember that it is better to pour oil a little than to save on it: only a significant excess of lubricant is dangerous with the formation of carbon deposits, and a slight excess will NOT harm the engine. If his grief, the consequences can be more dangerous.

      When mixing fuel for a Stihl chainsaw, the manufacturer recommends that you first pour oil into the canister, then add gasoline and then vigorously mix the components. But practice of use shows that oil can “stick” to the walls of the canister and mix poorly, so it is better to carefully pour oil into gasoline and mix.

      It is better not to leave the remains of the fuel mixture in the tank in order to prolong the life of rubber seals and other parts subject to chemical damage. After stopping the saw, the fuel must be drained and disposed of: during long-term storage (more than a month), the octane number and other physicochemical properties of the mixture decrease and it becomes unsuitable for safe use.

      In addition, after emptying the gas tank, you need to start the saw engine and let it run at idle speed until it stops on its own. this will mean that the carburetor is also rid of the remaining fuel mixture.

      It is important to remember that the long-term performance of the equipment is largely dependent on the user. Saving on fuel in the case of a chainsaw can be much more expensive in the future. by out-of-warranty repairs of a broken saw or by purchasing a new unit. Following the manufacturer’s instructions in most cases helps to understand the principles of the device and prolong its trouble-free and trouble-free operation.

      Appointment

      Engine oil is a special blend of solvent and friction-reducing additives. They form a certain viscosity and DO NOT allow the composition to thicken when the temperature is lowered. Usually oils are specially colored in different colors: green, red or blue. This allows them not to be confused.

      Please note that they may vary in composition, so petrol trimmer oil will be labeled “for gardening”. In addition, it may still differ in marking: “2T” or “4T”. The first is two-stroke oil that is filled into the corresponding engine. And the second is intended for pouring into the crankcase.

      Petrol trimmer oil: types and recommendations for use

      Gasoline trimmers are among the most popular mowing tools. They are easy to use, mobile, allow the person NOT to depend on an outlet and show excellent results in the places where they are used. But for the stable operation of a gasoline trimmer, high-quality consumables are needed. In particular, we are talking about gasoline and oil. It is in the last component that we will talk in this article.

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      Requirements

      High-quality oil that can be poured into a gasoline trimmer must meet a number of requirements and standards in order to ensure reliable operation of the device and its performance. The oil should:

      • Provide increased wear resistance for various elements (in particular, the gearbox is especially susceptible to this)
      • Provide the lowest possible smoke and exhaust emissions;
      • DO NOT allow premature ignition;
      • Mix well with gasoline when exposed to low temperatures;
      • Have good viscosity and flow characteristics in various temperature ranges;
      • Be as safe as possible in terms of environmental impact.

      As mentioned, two-stroke engine oil will differ from four-stroke engine oil. It has higher power, which is why fuel for it is obtained by mixing a certain amount of gasoline and oil. The ratio will be different for each lawn mower. You can find out its meaning in the instructions for the device. These proportions must be observed with maximum accuracy. When adding additives, take into account the type of motor.

      If mineral oils are used, the mixing should be somewhere in the ratio of 1: 25, 30 or 35, depending on the type. If we are talking about synthetic analogs, then the proportion will be 1: 50 or 80 That is, a certain amount of oil is dissolved in the volume of gasoline.

      Varieties

      The oil that is poured into the engine may differ in the production method. According to this criterion, it happens:

      • Mineral. this type is obtained during the processing of petroleum products;
      • Synthetic. it is obtained by processing or synthesizing gas;
      • Semi-synthetic. this type has more advanced characteristics due to the introduction of synthetic-based components into it.

      Lawnmower oil refers to formulations intended for use in air-cooled engines that have a combustion chamber volume of 50-200 cubic centimeters. In addition, any two-stroke oil may differ from analogs in additives, which give it certain additional characteristics. They are of the following types.

      • Antiwear. The main task of the oil will be to reduce wear of parts during the operation of the device.
      • Antioxidant. They DO NOT allow oxidation to occur and make it possible to maintain the performance of the oil for a long time.
      • Anti-corrosion. Their job is to prevent corrosion from forming on engine parts.
      • Friction modifiers. These additives can significantly reduce the coefficient of friction.

      Recently, when purchasing oil for dilution with gasoline, users are very often faced with the fact that special letter abbreviations are applied to the canister. These designations are made within the framework of the API classification. Consider what types of oils exist in accordance with it.

      • And it is used for air-cooled lawn mowers, the engine capacity of which is no more than 50 cubic centimeters. It can be used Not only for mowers, but also for mopeds, lawn mowers and other types of equipment. For a petrol trimmer, this is the optimal solution.
      • TB is used to refuel a chainsaw, scooter, moped or motorcycle, the engine of which does NOT exceed 200 cubic centimeters. Can also be used for refueling petrol trimmers.
      • TC is suitable for thinning with gasoline and pouring into a snowmobile, motorcycle and other types of equipment.
      • TD is intended for refueling boats, yachts and gyro scooters.

      But in addition to this classification, other letter designations of the FA-FD type are often found. It should be said that the API is an American standard that is used in Europe. But there is a discrepancy between European and American smoke emission regulations. For this reason, additional letter designations should be taken into account.

      • FA can be used in countries where minimum exhaust gas emissions are required by law. Faint smoke may be emitted when using oils with this mark.
      • FB. can be used in countries where the restrictions on the emission of smoke and gases are much stricter. In this case, the smoke will practically not be emitted.
      • FC. smoke of a transparent color appears here, as the human eye cannot notice.
      • FD is a special category of oils for 2-stroke engines, they do not create smoke at all. They have enhanced chemical characteristics. Usually this oil is used for mixing with gasoline and subsequent refueling of boats and yachts.

      In addition, oils come in two more categories:

      • Selfmix;
      • Premix.

      In the first case, this will mean that it is necessary to carry out self-mixing, which does not require shaking, and in the second case, you will need to do it too.

      Tips for choosing

      Now let’s try to understand how to choose a quality trimmer oil that runs on gasoline. The main feature to look out for is the base number. This moment excludes oxidation of the parts in which friction is observed, and slows down their deformation as much as possible. The more this compound is used, the faster it loses its alkalinity and becomes more oxidized. The optimal indicator of acidity (PH) is a value of at least 8-9 units.

      The second important factor, which also has a serious impact on the performance of the gasoline trimmer, is the viscosity of the oil. This characteristic determines the ability to use the device at different temperatures. Summer brands of oils begin to thicken already with a minimum temperature drop.

      The third point, the importance of which should not be underestimated, is the flash point. This indicator should NOT be less than 225 degrees. Otherwise, the composition will burn out very quickly and the load on the piston group will begin to increase, which will cause its accelerated wear. Also, 4-stroke oil will not work for 2-stroke. Namely, the latter type of motors is used in the vast majority of lawn mowers.

      If we talk about manufacturers, then you can make a small rating, which will allow you to navigate the formulations offered by various manufacturers. For example, Stihl offers quality synthetic and mineral oils, which have already proven themselves as an excellent solution at any time of the year.

      Shell Helix Ultra oil is considered very good. Experts note its high characteristics and excellent indicators of alkalinity and viscosity. In addition, the products of such brands as Oleo-Mac, Motul, Hammerflex, Echo are considered worthy. If we talk about the products of domestic brands, then you should pay attention to Lukoil oil. Its price is several times lower than foreign counterparts, but at the same time it has high quality and good technical characteristics.

      How to use?

      For the proportion of oil used, see above. Let’s say right away that you should not deviate from the indicated values ​​and dilute gasoline by eye. At best, you just need to change the oil, and at worst, engine damage cannot be avoided.

      It is important to be able to prepare the mixture correctly. It cannot be poured into the gas tank. It is better to pour the oil into a special container that already contains gasoline. A plastic bottle of mineral water is perfect for this. It is very important here that it is clean, which is why beer or milk bottles will not work. And it is better that it be a liter or two-liter, since it will be difficult for many to calculate how much oil to fill in a 1.5-liter or 1.25-liter bottle. You will also need to have a syringe on hand that will function as a dosimeter. It is best to take a regular medical one for 10 or more cubes.

      Now explain step by step how to make a good gasoline trimmer oil.

      • First, you should find out exactly what type of oil is required for a particular braid model, as well as find out the exact ratio of gasoline and oil to create a mixture.
      • Then you need to fill the container. The container should not be filled with gasoline to the end, because oil must still fit there;
      • Now we draw the required amount of 2-stroke oil into the syringe and pour it into a bottle of gasoline. You cannot do the opposite, otherwise all ingredients will need to be replaced, and the mixture will need to be done again.
      • Close the bottle with a lid and stir. Here it is important NOT to forget that you need to stir the mixture if the words Premix are on the bottle with oil. If it says Selfmix, then after mixing the substances, everything is poured into the tank.

      Now all that remains is to refuel the petrol trimmer, and you can carry out the necessary work.

      For information on how to choose oil for gasoline trimmers, see the following.

      Mixing rules

      And now about how to mix the components correctly. However, it would be more logical to start with an analysis of common, but absolutely unacceptable mistakes, which many owners of this mowing unit “sin” with. The following actions are considered as mixing errors.

      • Adding oil to the fuel already in the mowers’ gas tank. Similarly, a homogeneous fuel mixture will NOT work. Perhaps it will work, if only then shake the trimmer for a long time. But it is unlikely that someone will do this by taking the weight of the unit.
      • First pour oil into a mixing container, and then add gasoline to it. Gasoline has a lower density than oil, so if it is poured into the oil, it will remain in the upper layer, that is, natural mixing will NOT occur. Of course, it will be possible to mix later, but much more energy will be required than if it were done the other way around. pour oil into the filled gasoline.
      • Ignoring accurate measuring instruments for taking the required quantities of ingredients used. In other words, diluting the amount of oil or gasoline “by eye” is a bad habit when operating motor vehicles.
      • Take empty drinking water bottles for preparation of the fuel mixture. Such a container is made of too thin polyethylene, which can be dissolved in gasoline.

      Considering all of the above, we recommend using the following rules when mixing a fuel mixture for two-stroke trimmer engines.

      • Use only clean containers made of metal or special plastic for storage of gasoline, oil, ready-made fuel mixture and its preparation.
      • Use for filling gasoline into the LEIKOME dilution container in order to avoid spilling, and for adding oil. in a measuring container with volume risks or a medical syringe for 5 and 10 ml.
      • First, pour gasoline into the canister for preparing the fuel mixture, and then oil.
      • To dilute the mixture, first pour only half of the planned volume of gasoline into the container.
      • Next, add the entire amount of oil required to prepare the mixture to the gasoline.
      • Mix the contents of the dilution container thoroughly. It is best to stir by making circular movements with a tightly closed container. You should not stir the fuel inside the canister with any foreign object, since it is not known what material this object is made of, what reaction it can enter into with an ingredient in the mixture, how clean it is.
      • Add the rest of gasoline to the mixed mixture and mix thoroughly again.
      • You can refill the fuel tank of the lawn mowers.
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      It must be borne in mind that the ready-made fuel mixture does not have to be stored for more than 14 days, since it loses its properties, stratifies and evaporates, which leads to changes in proportions, and therefore, deterioration of trimmer performance.

      Consequences of violation of the ratio

      How accurately you will observe the proportions of the oil-gasoline mixture recommended by the manufacturer depends on the service life of the motor scooter engine. The fact is that the fuel mixture enters the cylinders in the form of gasoline-oil mist. And the task of the oil composition is to lubricate the moving and rubbing parts and surfaces of various parts in the cylinder. If it suddenly turns out that there is not enough oil, but somewhere it will not be enough at all, the parts touching dry will begin to damage each other. As a result, scuffs, scratches and chips are formed, which will certainly lead to complete or partial engine failure (for example, it can jam).

      In the opposite case, when too much oil enters the engine, it does NOT have time to completely burn out, settling on the cylinder walls and turning over time into solid particles. coke, slag and the like. As you might guess, this also leads to engine failure. The most important thing is that you must not allow. even a single violation of the proportion towards the lack of oil. It is better to pour a little oil 10 times than not to top up just once. It often happens that this time is quite enough to break the engine.

      Gasoline to lawn mower oil ratio

      lawn mows are a fairly common technique for combating weeds in summer cottages, in road gardens and housing and communal services. These devices have two more names. trimmer and lawn mower. These units differ in their engines. The more expensive ones have four-stroke engines, all the others have two-stroke engines. Of course, the latter are the most popular among the population, since they are simpler in design, and lighter in weight, and much cheaper than their four-stroke competitors. However, two-stroke models are inconvenient in that the fuel mixture for them must be prepared manually, maintaining a strict dosage between gasoline and oil. In four-stroke analogs, the mixing of THESE components occurs automatically, you only need to fill the gas tank and oil tank with the corresponding substances. Let’s consider the issue of the correct refueling of two-stroke lawn mowers, since it depends on how effective and long the operation of such a unit will be.

      Standard proportions

      First of all, it is necessary to take into account the information that the manufacturer recommends, since in the event of a failure of the lawn mowers, you can present your claims to him, and not to a third-party source. If there is no instruction in the passport, and even more so if there is no passport, we recommend that you look for another trimmer model in a more reliable seller.

      For all other cases, when you have a lawn mower model in your hands and there is no way to find out its technical features, there are standard proportions of the Most probable fuel mixture components for a two-stroke engine. Basically, for THESE units, AI-92 gasoline and a special synthetic oil are used, which contains a solvent for better mixing with fuel. This oil evaporates slowly and has the ability to completely burn out in the cylinder, Do not leave carbon deposits.

      The standard ratio of synthetic oil to gasoline is 1: 50. This means that 5 liters of gasoline need 100 ml of oil, and in accordance with this, oil consumption per 1 liter of gasoline is 20 ml. Knowing the amount of oil required to dilute 1 liter of fuel, you can easily calculate any rates when preparing fuel for the trimmer. When using mineral oils, a ratio of 1: 40 is most often the standard. Therefore, 1 liter of fuel will require 25 ml of such oil, and for a 5-liter canister. 125 ml.

      When working with lawn mowers, a person with little experience in operating such equipment will not be difficult to determine and correct the actual amount of oil required for a particular model. You should only pay attention to Exhaust gases (their color, odor toxicity), cycle stability, engine heating and developed power. details about the consequences of incorrect mixing proportions of gasoline and oil can be expected in another section of the article. There are variants of lawn mowers running on AI-95 gasoline. This should also be considered.

      How to choose for lawn mowers?

      For two-stroke engines, lawn mowers use AI-92 or AI-95 gasoline. Most often. the first of the named. There is always information about this in the technical data sheet of the product. If, for some reason, it is not known exactly on which gasoline the trimmer should work, you can choose it by testing both brands of gasoline in action. Global changes in the engine will not happen from this, and it is quite possible to determine what kind of gasoline and or another model of the unit “likes” more, according to some factors. This will be shown by the developed power, and throttle response, and engine heating, as well as its stable operation at all speeds.

      But it is much more difficult to determine the proportions of oil to a certain volume of gasoline. In this case, you need to know at least something in the equipment manufacturer. And already according to the standard proportions for this manufacturer, select the proportion for a specific model, taking into account the type of oil.

      For example, for Chinese low-power trimmers, two ratios are mainly used. 1: 25 or 1: 32. The first is for mineral oils, and the second is for synthetic oils. In the choice of standard proportions for lawn mowers of European and American manufacturers in connection with the type of oil, we have already told you earlier. According to the class of oils for household trimmers, you need to use TB oil according to the API classification. For more powerful. class TS.

      For the ratio of gasoline to oil required for lawn mowers, see the following.

      Features of preparation and storage of the fuel mixture

      Safety regulations prescribe to dilute gasoline and oil in a metal canister. This eliminates the risk of static electricity and fuel ignition.

      Experts advise to pour oil into an incomplete container, mix thoroughly, and then top up with clean gasoline to the specified level. It should be excluded from everyday practice saving working time by preparing the working mixture directly into the gas tank of the chainsaw.

      This technology is fraught with fuel system failures due to the ingress of a large amount of oil into the carburetor, the need for disassembly and thorough flushing.

      Storage advice

      The mixture is better prepared in an amount that should be enough for one-time work. The problem lies in the irreversible deterioration of the working properties of the mixture during storage. The finished composition is recommended to be used for a few next days.

      A mixture of gasoline with a month-old oil impairs the traction capabilities of the engine. There is also the formation of resinous compounds in the fuel system and intense carbon formation in the combustion chamber, loss of mobility of the piston rings.

      • With minimal damage to quality, it is advisable to store gasoline with oil for NOT more than 2 weeks. At an ambient temperature of 25 degrees or more, this period is reduced to 8-10 days.
      • In order to save money, the expired mixture can be gradually consumed by mixing it into the fresh composition in an amount of NOT more than 10% of the total volume.

      In order to avoid problems associated with the failure of the fuel system, it is recommended to filter the prepared mixture for non-fiber material such as suede, or fine-mesh twill weaving, metal mesh.

      The ratio of gasoline to chainsaw oil

      Household and professional chainsaws are powered by two-stroke internal combustion engines operating on a metered mixture of gasoline and engine oil adapted to the difficult operating conditions. The correct proportions of oil and gasoline for a chainsaw is one of the fundamental conditions for stable traction characteristics of the engine and low-cost development of its assigned resource.

      The need to obtain a sufficiently high power from a small-cube power unit makes it necessary to operate chainsaw engines at high-speed modes, therefore, increased requirements are imposed on the quality of both components of the fuel mixture.

      Self-selection criteria

      A wide range allows you to choose oil that fully corresponds to the class and characteristics of the chainsaw, the conditions of its subsequent operation.

      • For budget models you can use oils of the Standard category, for professional chainsaws. Consumables of the Super and Ultra categories are recommended.
      • To prepare a full-fledged fuel mixture for a chainsaw, it is advisable to use branded oils or their branded counterparts recommended by the instruction manual. In particular, Stihl and Husqvarna engine oils are completely interchangeable in composition and application.

      Experts recommend that owners of chainsaws exclude from the scope of attention motor oils intended for two-stroke engines of mopeds, boat motors and other mechanized household appliances.

      The power units of this equipment operate in more comfortable conditions, which makes the requirements for their operational characteristics less stringent.

      Petrol

      The main component of the fuel mixture for chainsaw engines is gasoline with an octane number of at least 92.

      • The opinions of experts on the use of different brands of gasoline are ambiguous. On the one hand, the incomplete compliance of domestic gasoline A-92 with European standards is recognized.
      • On the other hand, the quality of A-95 gasoline is questioned due to the high content of anti-knock additives. It is possible to use this fuel for the preparation of fuel for a chainsaw only if you are fully confident in its quality.
      • The difficulty lies in the presence of various improving additives, with the help of which unscrupulous manufacturers and distributors increase the performance properties of motor gasoline with a lower octane index.

      There are also irreversible changes in the operating parameters of the fuel when it is stored for a sufficiently long time in a plastic container, regardless of the level of its petrol and oil resistance.

      Benefits of branded oils

      Many domestic and foreign manufacturers specialize in the production of Special motor oils, but the highest ratings are in the branded products of Stihl, Husqvarna and Makita.

      Domestic engine oils of the LUKOIL brand are inferior only in certain parameters of the branded assortment.

      The list of advantages of branded motor oils:

      • Economical consumption;
      • Stability of performance under difficult operating conditions and during long-term storage;
      • The minimum amount of toxic compounds in exhaust gases;
      • Almost complete absence of carbon deposits.
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      According to the American classification, API-TB oils can be used for work in household and professional models. The Japanese counterpart is JASO-FB and JASO FD. Preparation of a combustible mixture using oil for 4-stroke engines is strictly excluded.

      Red, green or any other color of oil determines the product’s belonging to the assortment of a certain manufacturer, therefore, when determining the characteristics of the material, it is not taken into account. You should be extremely careful when choosing engine oil of unknown composition and origin.

      To obtain additional information on quality and operational parameters, it is better to temporarily refuse to use such material.

      It is allowed to mix engine oils of the same type in composition and purpose, produced by brands known for the quality of their assortment. Under no circumstances is it allowed to mix mineral and synthetic oils.

      Caution. counterfeit!

      Small private companies from China and other Asian countries specialize in the production of motor oils, which are sold at a lower cost in the markets under the brand name of leading manufacturers.

      • The characteristics of counterfeit products are an order of magnitude lower than the original ones. The constant use of counterfeit products adversely affects the operation of the chainsaw and the durability of its operation.
      • Only an experienced specialist can determine the status and quality of the oil, so you can avoid possible risks by buying consumable components in a network of branded and licensed retail outlets.
      • The use of substandard lubricants for service specialists is a legal basis for depriving the owner of a faulty saw of warranty repair and restoration obligations.

      Oil dosage in Chinese version

      Many chainsaws of the Chinese assembly are simplified copies of popular models of European design. The absence of special materials and proprietary technologies contributes to the preservation of the outdated proportion of gasoline and oil in a ratio of 25: 1.

      The doubled consumption of engine oil is compensated by its lower cost. According to the assurances of the developers, original components are introduced into the composition of Chinese oils, which help to increase the wear resistance of power units and the real extension of their assigned resource.

      According to the conclusion of independent experts, the quality of the best brands of Chinese motor lubricants corresponds to those of European manufacturers in the middle price range. This is the level of branded motor oils of the Standard group and partially. Super.

      Measuring containers

      To maintain the correct proportion of gasoline and oil, the calculation table printed on the saw body can be used. Branded containers of leading manufacturers of engine oils are equipped with built-in measuring devices that ensure accurate dosage of oil for different volumes of fuel mixture.

      Volumetric utensils are included in the factory set of many models of budget chainsaws. In SEPARATE cases, dilute gasoline with oil in a given proportion will help a medical syringe with a volume of 20 cm3.

      Caution. counterfeit!

      Small private companies from China and other Asian countries specialize in the production of motor oils, which are sold at a lower cost in the markets under the brand name of leading manufacturers.

      • The characteristics of counterfeit products are an order of magnitude lower than the original ones. The constant use of counterfeit products adversely affects the operation of the chainsaw and the durability of its operation.
      • Only an experienced specialist can determine the status and quality of the oil, so you can avoid possible risks by buying consumable components in a network of branded and licensed retail outlets.
      • The use of substandard lubricants for service specialists is a legal basis for depriving the owner of a faulty saw of warranty repair and restoration obligations.

      Benefits of branded oils

      Many domestic and foreign manufacturers specialize in the production of Special motor oils, but the highest ratings are in the branded products of Stihl, Husqvarna and Makita.

      Domestic engine oils of the LUKOIL brand are inferior only in certain parameters of the branded assortment.

      The list of advantages of branded motor oils:

      • Economical consumption;
      • Stability of performance under difficult operating conditions and during long-term storage;
      • The minimum amount of toxic compounds in exhaust gases;
      • Almost complete absence of carbon deposits.

      According to the American classification, API-TB oils can be used for work in household and professional models. The Japanese counterpart is JASO-FB and JASO FD. Preparation of a combustible mixture using oil for 4-stroke engines is strictly excluded.

      Red, green or any other color of oil determines the product’s belonging to the assortment of a certain manufacturer, therefore, when determining the characteristics of the material, it is not taken into account. You should be extremely careful when choosing engine oil of unknown composition and origin.

      To obtain additional information on quality and operational parameters, it is better to temporarily refuse to use such material.

      It is allowed to mix engine oils of the same type in composition and purpose, produced by brands known for the quality of their assortment. Under no circumstances is it allowed to mix mineral and synthetic oils.

      Oil dosage in Chinese version

      Many chainsaws of the Chinese assembly are simplified copies of popular models of European design. The absence of special materials and proprietary technologies contributes to the preservation of the outdated proportion of gasoline and oil in a ratio of 25: 1.

      The doubled consumption of engine oil is compensated by its lower cost. According to the assurances of the developers, original components are introduced into the composition of Chinese oils, which help to increase the wear resistance of power units and the real extension of their assigned resource.

      According to the conclusion of independent experts, the quality of the best brands of Chinese motor lubricants corresponds to those of European manufacturers in the middle price range. This is the level of branded motor oils of the Standard group and partially. Super.

      Petrol

      The main component of the fuel mixture for chainsaw engines is gasoline with an octane number of at least 92.

      • The opinions of experts on the use of different brands of gasoline are ambiguous. On the one hand, the incomplete compliance of domestic gasoline A-92 with European standards is recognized.
      • On the other hand, the quality of A-95 gasoline is questioned due to the high content of anti-knock additives. It is possible to use this fuel for the preparation of fuel for a chainsaw only if you are fully confident in its quality.
      • The difficulty lies in the presence of various improving additives, with the help of which unscrupulous manufacturers and distributors increase the performance properties of motor gasoline with a lower octane index.

      There are also irreversible changes in the operating parameters of the fuel when it is stored for a sufficiently long time in a plastic container, regardless of the level of its petrol and oil resistance.

      Fuel mixture working proportions

      The standard ratio of gasoline to oil in the fuel mixture for gasoline-powered carburetor engines of different models is 40: 1 and 50: 1. This proportion provides full lubrication of the rubbing parts of the crank mechanism and piston group, and also does not prevent the complete combustion of the gasoline-air mixture.

      Taking into account external factors, the fuel mixture can be adjusted towards an increase in the amount of oil. Such a need arises at the stage of running in a new tool, as well as at high air temperatures. In this case, the standard oil dosage is increased by 20%.

      In practice, an increase in the percentage of oil in the fuel mixture is used if its characteristics do not fully meet the stated requirements. How much oil per liter of gasoline is needed in each case is determined by the sawfly himself.

      Lubricants

      Stricter selection criteria for the oil component. In the best variant, it is a mineral or semi-synthetic engine oil recommended by the manufacturer, intended for operation in high-speed two-stroke air-cooled internal combustion engines.

      The advantage of mineral oils is their lower cost. Their more expensive semi-synthetic and synthetic counterparts are distinguished by their improved performance and compliance with environmental standards.

      Synthetics:

      • Maintain performance over a wide range of operating temperatures;
      • Do NOT form carbon deposits;
      • Contains detergents, antioxidants, preservatives and other additives useful for the operation of the power unit.

      Features of preparation and storage of the fuel mixture

      Safety regulations prescribe to dilute gasoline and oil in a metal canister. This eliminates the risk of static electricity and fuel ignition.

      Experts advise to pour oil into an incomplete container, mix thoroughly, and then top up with clean gasoline to the specified level. It should be excluded from everyday practice saving working time by preparing the working mixture directly into the gas tank of the chainsaw.

      This technology is fraught with fuel system failures due to the ingress of a large amount of oil into the carburetor, the need for disassembly and thorough flushing.

      Self-selection criteria

      A wide range allows you to choose oil that fully corresponds to the class and characteristics of the chainsaw, the conditions of its subsequent operation.

      • For budget models you can use oils of the Standard category, for professional chainsaws. Consumables of the Super and Ultra categories are recommended.
      • To prepare a full-fledged fuel mixture for a chainsaw, it is advisable to use branded oils or their branded counterparts recommended by the instruction manual. In particular, Stihl and Husqvarna engine oils are completely interchangeable in composition and application.

      Experts recommend that owners of chainsaws exclude from the scope of attention motor oils intended for two-stroke engines of mopeds, boat motors and other mechanized household appliances.

      The power units of this equipment operate in more comfortable conditions, which makes the requirements for their operational characteristics less stringent.

      Storage advice

      The mixture is better prepared in an amount that should be enough for one-time work. The problem lies in the irreversible deterioration of the working properties of the mixture during storage. The finished composition is recommended to be used for a few next days.

      A mixture of gasoline with a month-old oil impairs the traction capabilities of the engine. There is also the formation of resinous compounds in the fuel system and intense carbon formation in the combustion chamber, loss of mobility of the piston rings.

      • With minimal damage to quality, it is advisable to store gasoline with oil for NOT more than 2 weeks. At an ambient temperature of 25 degrees or more, this period is reduced to 8-10 days.
      • In order to save money, the expired mixture can be gradually consumed by mixing it into the fresh composition in an amount of NOT more than 10% of the total volume.

      In order to avoid problems associated with the failure of the fuel system, it is recommended to filter the prepared mixture for non-fiber material such as suede, or fine-mesh twill weaving, metal mesh.