How to Dilute Gasoline For a Trimmer

Petrol trimmers are ideal for site maintenance due to their mobility. Such mower models require periodic fuel changes. The choice of gasoline must be approached competently. Strongly save on buying is not worth it.

Choosing a brand of gasoline for trimmers

It is necessary to select the brand of gasoline for lawn mowers, taking into account the recommendations of the manufacturer. If you do not comply with them, then the motor will soon break down. Often, unleaded fuel with an octane rating of 92 or 95 is used to refuel the trimmer’s gas tank.

Gas mixture

Filling the trimmer with AI-80 grade gasoline can lead to breakdowns of the device due to its low technical characteristics. Please note that after purchase, fuel can be stored for no more than 60 days, but it is better to reduce this period.

Polyethylene cans are not used for storage, because when it comes into contact with the internal walls, static electricity will occur. Accidental sparks will cause an explosion. Although, there are special plastic canisters marked "flame".

Fuel mixture for two-stroke engines

Trimmers that are equipped with a two-stroke engine do not have a separate system designed to supply oil for the purpose of lubricating rubbing parts. For this reason, such devices need to be refueled not with clean gasoline, but with a mixture of fuel with engine oil. The latter should be specifically designed for two-stroke engines. The use of automotive engine fluid will lead to premature engine failure.

Preparation of a fuel mixture for two-wheeled engines

A gas engine with a two-stroke engine needs gasoline grade AI-92. When using AI-95, engine overheating and uneven operation of the unit may be observed. You need to mix gasoline with oil in a ratio of 50: 1, where 50 is fuel, and 1 is oil. It turns out that 1 liter of fuel will need 20 ml of oil.

If the motor is worn out or the tool is operating at high load, the proportion is 25: 1. If there is not enough lubricant, scoring will appear on the walls of the cylinder and piston surface. Then the piston ring will undergo destruction, as a result of which the engine will jam. An overabundance is not so critical, but it can lead to carbon deposits. At the same time, the piston ring is coked, which will reduce the power of the device.

Proportions of oil and gasoline for the fuel mixture

Four-stroke gasoline engine

Devices with a four-stroke engine are distinguished by a more complex device. Oil and gasoline are poured into different containers, from where they are then fed into the engine. For mowers with such a motor, AI-92 and AI-95 grades are needed. It is better not to use fuel with a lower octane rating, because this will lead to unstable engine operation. In addition, grease intended for push-pull models must not be used.

How to fill trimmer

The finished mixture of gasoline with oil can be stored for no more than 3 months (pure gasoline is stored less). Dilute fuel in an amount sufficient for several trimmer applications. In general, prepare:

• Gasoline and oil, which is suitable for two-stroke engines with an air cooling system;
• Metal canister and mixing container;
• Respirator;
• Gloves.

Adding Oil to Gasoline

Dilution Instructions:

1. Pour 1 liter of gasoline into a suitable container and add 1/2 the right amount of oil.
2. Mix gently while at a decent distance from open flames.
3. Add the remaining half of the oil to the fuel and mix again.

Trimmer Refueling Process

General recommendations for refueling a trimmer with a two- or four-stroke engine:

• Position the fuel tank so that the lid is on top, then fill in the required amount of fuel.
• Do not overfill the fuel tank. This will lead to one of the problems: overflow in the inlet pipe and fuel filter, ignition of the fuel or damage to the engine.
• Try to fill the mixture so that it does not spill. You can use a watering can for this.
• If you nevertheless spilled fuel, wipe it off immediately. Dispose of cleaning materials, do not store them indoors – this is a fire hazard.
• Starting the device should begin after the fuel canister has been removed to a distance of more than 10 m.
• If there was a long break between the operations of the mower, be sure to drain the remaining old fuel.

Video

Lawn mowers are a fairly common technique for controlling weeds in summer cottages, in household plots, on the road, and in housing and communal services. These devices have two more names – trimmer and lawn mowing. These units differ in their engines. The more expensive of them have four-stroke engines, all the rest are two-stroke. Of course, the latter are the most popular among the population, as it is both simpler in design and mass lighter and much cheaper than its four-stroke competitors. However, two-stroke models are inconvenient in that the fuel mixture for them must be prepared manually, withstanding 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 appropriate substances. Let’s look at the question of the correctness of refueling just the push-pull lawn mowers, since it depends on how efficient and long the operation of such an aggregate will be.

Standard proportions

First of all, it is necessary to take into account the information recommended by the manufacturer, since in case of failure of the lawn mowers, you can make your claims to him, and not to an external source. If there is no instruction in the passport, and even more so if there is no passport, we recommend that you look for a different trimmer model from a more reliable seller.

For all other cases when you have a model of lawn mowers in your hands and there is no way to find out its technical features, there are standard proportions of the most likely components of the fuel mixture for a two-stroke engine. Mostly for these units, AI-92 grade gasoline and special synthetic oil are used, which contains a solvent for better mixing with fuel. Such oil evaporates slowly and has the ability to completely burn in the cylinder without leaving a deposit.

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

When the lawn mowers are working, a person who has little experience in operating such a technique will easily find and correct the actual amount of oil needed for a particular model. It is only necessary to pay attention to exhaust gases (their color, odor toxicity), cycle stability, engine heating and developed power. More details about what consequences from the wrong proportions of mixing gasoline and oil can be expected are covered in another section of the article. There are options for lawn mowing running on AI-95 gasoline. This should also be considered.

Mixing rules

And now about how to mix components correctly. However, it will be more logical to start by analyzing common, but absolutely unacceptable errors that many owners of this mowing unit “sin”. The following actions are considered to be errors in mixing the fuel mixture.

• Adding oil to fuel already poured into the gas tank. Similarly, a homogeneous fuel mixture cannot be obtained. Perhaps it will turn out, if only then shake the trimmer for a long time. But hardly anyone will do this, given the severity of the unit.
• First pour oil into the mixing tank, and then add gasoline to it. Gasoline has a lower density than oil, so if it is poured to 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 energy will be required much more than if it were done the other way around – pour oil into the gasoline poured.
• Ignoring accurate measuring instruments to take the required volumes 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 bottles from under drinking water to prepare the fuel mixture. Such containers are made from too thin polyethylene, which can dissolve with gasoline.

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

Video: How to Dilute Gasoline For a Trimmer

1. To use for storage of gasoline, oil, finished fuel mixture and its preparation only clean containers made of metal or special plastic.
2. Use to pour gasoline into the dilution tank with a watering can to avoid spillage, and to add oil, use a measuring container with volume risks or a 5 and 10 ml medical syringe.
3. First, pour gasoline into the canister to prepare the fuel mixture, and then oil.
4. To dilute the mixture, only half of the planned volume of gasoline is first poured into the tank.
5. Next, add to the gasoline the entire amount of oil required to prepare the mixture.
6. Thoroughly mix the contents of the dilution tank. It is best to interfere by making circular movements with a tightly closed container. Do not mix 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 with the ingredients of the mixture, how clean it is.
7. The remainder of the gasoline is added to the mixed mixture and again thoroughly mixed.
8. You can fill up the fuel tank of the lawn mowers with the prepared mixture.

It must be borne in mind that the finished fuel mixture should not be stored for more than 14 days, as it loses its properties, delaminates and evaporates, which leads to changes in the proportions, and hence the deterioration of the trimmer.

The consequences of a violation of the ratio

The working life of the engine of the motocosa depends on how accurately you comply with the proportions of the oil-gasoline mixture recommended by the manufacturer. 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 the lubrication of moving and rubbing parts and surfaces of various parts located in the cylinder. If it suddenly turns out that the oil is not enough, and somewhere it will not be enough to get enough, the parts in contact with dryness will begin to damage each other. As a result, galling, scratches and chips are formed, which will necessarily lead to complete or partial unsuitability of the engine (for example, it may 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 eventually turning into solid particles – coke, slag and the like. As you might guess, this also leads to engine failure. The most important thing that should not be allowed – even a single violation of the proportions in the direction of lack of oil. It is better to pour a little oil 10 times than not to add only 1 time. It often happens that this time is quite enough to break the engine.

How to choose for lawn mowers?

For two-stroke engines, the lawn mowers use AI-92 or AI-95 gasoline. Most often – the first of these. Information on this is necessarily available in the technical passport of the product. If for some reason it is not known exactly which gasoline the trimmer should work on, you can choose it by testing both brands of gasoline in action. There will be no global changes in the engine from this, but it is quite possible to determine which gasoline this or that model of the unit “loves” more. This will be shown by the developed power, and throttle response, and heating of the engine, as well as its stable operation at all speeds.

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

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

For the ratio of gasoline and oil necessary for lawn mowing, see the next video.

Trimmer, or lawn mowing – a tool that can not be done in the household. At the same time, its reliability, efficiency and long service life depend on many factors. For example, the quality of fuel. This means that you need to choose the right oil for the trimmer, observe the proportions when adding to gasoline and the rules for refueling the device.

Which oil to choose

For the effective operation of the trimmer, it is necessary to select oil for two-stroke engines. This is due to the lack of an oil sump in such a device. The following classification is distinguished depending on the chemical composition of the oil:

• Mineral – based on petroleum distillate, suitable for low-power equipment and with an air type of cooling, but requires frequent replacement and can only be used in good weather in the warm season;
• Semi-synthetic – suitable for garden equipment with air and liquid type of cooling;
• Synthetic – based on esters, do not require frequent replacement and can be used at any time of the year.

Oil for 2-stroke engines is characterized by good solubility and feature of complete combustion. For the trimmer, it is recommended to use a lubricant that is suitable for devices with an air cooling system. Most often on the package it is indicated that the oil is intended for gardening equipment and is marked TA, TV or TS. Moreover, the last of them is most preferable.

Often, manufacturers of lawn mowers produce the right oil, so you can make your choice easier if you select the appropriate brand fluid.

What kind of gasoline to fill

Gasoline for the trimmer must be selected unleaded with a stroke number of 92 or 95. As practice shows, AI-80 gasoline can lead to damage to the device, which is a dubious saving.

The fuel must be fresh, that is, after purchase it can be stored for no more than 60 days.

Other factors affect the quality of the fuel, for example, the use of a special lubricant for lawn mowing and diluting it in a separate container. It is also recommended to use special canisters designed to store gasoline.

How to dilute gasoline with trimmer oil

It is necessary to breed gasoline for the trimmer in the correct proportion. An insufficient amount of oil can lead to poor lubrication of the lawn mowing elements, which contributes to rapid wear.

The correct ratio can be found in the instructions for the trimmer. Most often it is 1:25, 1:40, 1:50. To obtain such proportions in 1 liter of gasoline, add 40 ml, 25 ml and 20 ml of oil, respectively.

Diluting gasoline with lubricant directly in the fuel tank is unacceptable; moreover, the proportion of oil and gasoline must be strictly observed. If you ignore this rule, then the operation of the trimmer motor may be unstable, because of which it will quickly fail.

It is not recommended to use plastic bottles or canisters for this purpose. This is due to the fact that gasoline has the ability to dissolve plastic, which means that part of the plastic can get into the fuel tank, which can lead to damage to the carburetor. Although there are special plastic canisters marked “flame”.

This will require:

• Petrol;
• Oil suitable for two-stroke engines with an air cooling system;
• Canister, better metal;
• Mixing tank, also better metal;
• Gloves
• Respirator.

A mixture of gasoline and oil should be made as follows:

1. Pour 1 liter of gasoline into the container, add half the right portion of oil. Mix thoroughly, do this extremely carefully away from sources of open flame.
2. Add the remaining oil to the trimmer gasoline and mix thoroughly again. Now the fuel can be poured into the trimmer’s fuel tank.

The mixture can be stored for no more than three months, so it is better to dilute gas in such quantity that it is enough for several uses.

How and how much to refuel

Refilling the trimmer fuel tank is easy. To do this, place the tank so that the lid is placed on top. The amount of fuel depends on the trimmer model. This information is indicated in the instructions, there is also a mark on the tank directly.

This can cause the fuel to spill over into the inlet pipe and fuel filter, which can cause engine damage or ignition of the fuel.

When refueling the trimmer, the following safety precautions must be observed:

• Try to fill the liquid so that it does not spill, you can use a watering can for this;
• If the gasoline spills, then immediately wipe it off;
• Trimmer start should be started after the fuel tank is removed in a safe and secure place, preferably at a distance of more than 10 meters;
• With a long break between operations, drain the remaining fuel.

The correct proportion and adherence to mixing and dressing technology will help extend the life of the trimmer. In this case, it is recommended to choose only a quality product of the corresponding brand.

The chainsaw engine is the "heart" of the tool, so it is very important to use a properly prepared fuel mixture.

Fuel mixture for a chainsaw It is prepared from two components – oil and gasoline. Chainsaws are equipped with two-stroke engines, so the oil is not added to the lubrication system (like a four-stroke engine), but directly to gasoline. At the same time, it is very important to observe the correct proportions of the ingredients, of course, in no case try to work on pure gasoline, because in this way you will very quickly “kill” the chainsaw.

If we talk about which gasoline to pour into a chainsaw, it will optimally use fuel with an octane rating A-95, in this case, fuel economy can turn out disastrously. Often, European manufacturers indicate that A-90 or A-92 gasoline can be used, but in post-Soviet countries the quality of gasoline is inferior to European, so in our realities it is better to use better gasoline.

As for the most proportions of a benzo-oiled mixture, then everything is simple: you must follow the instructions for the tool. All manufacturers of chainsaws indicate the necessary ratio in the instruction manual or in the instrument passport, in addition, the proportions for refueling the chainsaw may differ depending on the model of the chainsaw. As a rule, the proportion of oil and gasoline to a chainsaw of famous manufacturers is a ratio of 1:40 or 1:50, which means 1 part of oil for, for example, 40 parts of gasoline. Now arithmetic 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and get 25 ml of oil. If you perform the same steps to the ratio 1:50, then we get 20 ml of oil per 1 liter of gasoline. As for budget-made Chinese chainsaws, the situation is slightly different. The ratio of gasoline and oil for chainsaw made in China 1:25, that is, 1000 ml of gasoline is divided by 25, we get 40 ml of oil. The thing is that in branded chainsaws a good assembly and the distance between the pistons and cylinders in the engine is much smaller than that of Chinese chainsaws, therefore the required amount of oil differs almost twice.

In order to measure the correct portion of oil, use a regular medical syringe of sufficient volume.

Another subtlety – In a dry canister for gasoline, first fill in gasoline, and then oil. On the contrary, the procedure is fraught with a poor quality fuel mixture, because the oil is more dense, sticks to the bottom of the canister – what a good mix.

Be sure to prepare the fuel mixture in a can and pour ready-made special fuel into the gas tank! Never cook or mix directly in the fuel tank of a chainsaw!

If the question of how to breed gasoline for a chainsaw figured out, then on storage conditions and shelf life of the fuel mixture It is worth saying a few words. It’s best and easier to prepare a 1-liter gasoline-oil mixture, it is recommended to do this immediately before working with the tool. The fuel tanks of chainsaws have a volume of 0.3 to 1 liter. In domestic use, in one session, the entire volume of the prepared combustible mixture is rarely used, so the remainder can be saved until the next session. It is necessary to store the fuel mixture in a special canister for gasoline, in a dry, dark place. It is optimal to calculate that shelf life of the finished mixture will be 7-10 days. The fact is that the oil currently on the market is not synthetic, but organic, that is, natural. After 10 days, all lubricating properties are lost, gasoline simply “eats” the oil. Naturally, it is no longer possible to use such fuel, this can cause breakdown and failure of the chainsaw.

At the end of the work, it is necessary to drain the fuel mixture, start the chainsaw, the tool stalls (so that the saw has a dry carburetor) and now you can leave it until the next operation session.

Unsuitable fuel mixture must be disposed of.