The proportions of dilution of gasoline with chainsaw oil

The ratio of the amount of oil and gasoline for the fuel mixture

The proportion of oil and gasoline for a chainsaw is usually made up according to two recipes:

  • 50 servings of gasoline per serving of engine oil
  • 40 servings of gasoline per serving of engine oil

If the chainsaw was recently purchased and has not yet been operated, then the proportion of lubricant is increased by a quarter. The same amount is poured into fuel when cutting at temperatures below 2 degrees.

It is not difficult to get such a mixture. Almost every modern saw is equipped with a special two-section container. Oil is poured into a smaller part of it, and gasoline is poured into a larger part. The lids of both parts are tightly twisted and the container is turned over, shaken thoroughly. This achieves a complete and homogeneous mixing of both components.

If there is no such special container, then you can use any gasoline-resistant plastic container with a one-liter lid and a disposable syringe for 5-10 cubes. The tank for gasoline must first be cleaned of various pollutants and water. After that, one liter of 92-95 gasoline is poured into it.

In parallel, 20 ml of oil is drawn into the syringe. If refueling is done in cold weather, then you need to take 24-30 ml. We carefully pour it into a container with gasoline. It is tightly closed with a lid and shaken thoroughly until the components are completely mixed.

Recommended brands of fuels and lubricants for powering chainsaws

The specific brand of gasoline for the saw is always given in the manufacturer’s instructions. It is recommended to strictly follow it.

  • for engine,
  • for chain and bar lubrication.

Do not confuse or misuse them. This is guaranteed to cause damage to the tool. Repairing it can cost almost as much as a new saw.

The most popular chainsaw lubricating oils are:

  • Husqvarna
  • Kreissman
  • Sadko
  • STIHL

Each container with branded oil always indicates the proportion of oil and gasoline for the chainsaw (STIHL, Husqvarna, Partner, Ural), which must be adhered to when making the mixture.

Why you need to mix oil and gasoline

When using the saw, gasoline should always be mixed with oil. The reason for this is the design features of a two-stroke internal combustion engine. It does not have a dedicated lubrication system for parts (as in other internal combustion engines) and, accordingly, its cylinders with O-rings, crankshaft, bearings and connecting rods must be lubricated directly in the process of obtaining fuel.

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Step-by-step instructions for refueling

If you want to refuel your chainsaw, you need to follow a simple algorithm:

The proportion of oil and gasoline for a chainsaw: how to dilute

All modern chainsaws are equipped with a two-stroke engine. Its long and trouble-free operation directly depends on whether the proportion of oil and gasoline is correct for the chainsaw. The variety of tool brands and the features of each of them are the reason that this procedure is not easy for most novice users of chainsaws.

What happens if you pour working off into a chainsaw

When a chainsaw owner has been using it for a while, they may want to do some modification to the tool. And it’s good if his desires are limited to the purchase of various attachments that expand the functionality of the chainsaw. But some go further. they start experimenting with the gasoline and oil that their saw runs on.

If we have already spoken about gasoline earlier (most modern saws require it with a high octane number. at least 92-95), then it is worth mentioning the oil separately. Many car enthusiasts accumulate a significant amount of used engine oil during vehicle operation. And therefore, some have a desire to use this material for refueling a chainsaw.

If you do this, then it is guaranteed that the engine will fail. This is primarily due to the low lubricity of the recycled oil. It will burn with a lot of black soot. The metal particles contained in the oil will first clog the fuel filter (these are the larger particles), and then the cylinder O-rings will fail. A metal suspension in the oil will damage both the surface of the cylinders themselves and the bearings.

Some “innovators” try to use the working off to lubricate the chain itself and the block on which it is located. It also will not lead to anything good. What exactly will happen can be seen in the attached video.

Как обслуживать Бензопилу_Полный обзор.How to service a chainsaw, a full review.

Chainsaw Mixing Oil

To lubricate the internal parts of a gasoline engine, special oils are used with the following properties:

  • High quality cleaning. narrow channels of the carburetor should not be clogged with impurities of the fuel mixture.
  • They must have low smoke when burning. oil, together with gasoline, burns in the saw engine. A large amount of smoke has a negative effect on the exhaust system and the health of the owner of the saw.
  • Do not form excess carbon deposits. they negatively affect the operation of the tool, settling on the piston, and clog the exhaust system.

Using low-quality oil, the owner of the saw can face serious problems, which will result in expensive repairs. How much oil to pour into gasoline for a chainsaw is indicated by the manufacturer on the package. It is imperative to adhere to this dosage, since incorrect proportions negatively affect the service life of the tool.

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Chainsaw “Huter”: how to dilute gasoline with oil?

The German company Huter has been on the Russian market since 2004. She mainly supplies gardening equipment. Chainsaws from this company are intended for domestic use only. For the preparation of the fuel mixture, manufacturers recommend the use of a high quality oil that is suitable for air-cooled two-stroke engines, complying with the API TB or API TC classification. Gasoline for mixing should be taken from AI-92 unleaded. The ratio of the components in this case is 1:40, that is, 25 ml of oil is taken per 1 liter of gasoline, when no other data is indicated on the oil bottle. Mixing is carried out in a separate container according to the specified proportions, and only then the mixture is poured into the fuel tank.

For this, a bottle with graduations and a medical syringe without a needle are taken. All ratios must be strictly observed.

Characteristics of household chainsaws

The chain speed depends on the speed of the air-cooled engine. A separate oil tank is provided for lubrication and cooling. With an increase in the frequency of its rotation, the automatic supply of oil also increases. For normal operation of the chainsaw, it is necessary to control the contents of two tanks. for the engine and the chain to work.

50:1 Fuel to oil ratio easy way to calculate

How to mix gasoline with chainsaw oil?

To mix ingredients you need:

  • Use a clean, dry container, measuring cup and graduated bottle.
  • It is necessary to mix in a separate container, and not in the saw’s gas tank.
  • First, pour half of the gasoline, then the oil, shake everything well, add the second part of the gasoline and mix again.

Every tool owner should know how to dilute gasoline with chainsaw oil. However, the correct proportions are not yet a guarantee of a good mixture. It is important to select quality products so that gasoline and oil are homogeneous fluids and do not contain sediment. It is better to prepare the mixture before starting work. Although, according to the standards, the finished fuel and lubricating fluid can be stored for a month, but its properties deteriorate over time.

Self-selection criteria

A large assortment 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, consumable lubricants 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 operating instructions. In particular, STIHL and Husqvarna engine oils of the same composition and application are completely interchangeable.

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.

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

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 important 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.

In what proportions to mix liquids?

Each chainsaw manufacturer determines its proportions to obtain a gasoline-oil mixture and indicates this in the technical passport that is attached to the tool upon purchase. The proportions of gasoline and oil for chainsaws of domestic production are most often recommended in a ratio of 1:15 or 1:20. In order to calculate how much oil is required per liter of gasoline, you need 1000/15 = 65 ml and 1000/20 = 50 ml. In the first case, 65 ml of oil are added to each liter of gasoline, and in the second. 50 ml of oil. For imported equipment, the proportions are somewhat different.

For a Husgvarna chainsaw with an engine power of 2 kW, the manufacturer advises using a ratio of 1:50, that is, add 20 ml of oil for every liter of gasoline. Chinese-made saws require 40 ml of oil per liter of gasoline at a ratio of 1:25. It should be remembered that with an excess of oil in gasoline, carbon deposits increase, the cylinder becomes clogged, piston rings are damaged and compression decreases. If there is a lack of oil, the engine overheats and the performance of the tool sharply decreases. When the documentation is lost and you do not know how to mix gasoline with chainsaw oil, you can contact the service center for the necessary information.

Should I use AI-95?

Anyone who just gets acquainted with a chainsaw and makes attempts to carry out some household work, instead of AI-92 fuel, refills it with AI-95, believing that it is of the best quality. Gasoline with an octane rating of 95 is obtained from AI-92 by adding various additives. Special additives have a negative effect on two-stroke engines due to their design. They accumulate on the inner walls of the instrument and peel off over time, disrupting its operation. Therefore, experts advise buying only AI-92 for the preparation of a mixture for chainsaws.