The ratio of oil and gasoline for chainsaws of famous brands, the correct proportions, and what should not be diluted

What oil can be used to dilute gasoline for a chainsaw?

Only motor oil for two-stroke engines is added to chainsaw fuel. Oils for four-stroke engines are absolutely not suitable. The reason is that in two-stroke internal combustion engines, oil burns together with gasoline.

In automobile and other four-stroke internal combustion engines, it is poured into the crankcase, has many special additives, and is not initially designed for combustion. If you pour it into a chainsaw, it will smoke, will not burn out completely and will quickly form a thick layer of soot, which can ultimately damage the chainsaw.

In addition to the general specification “for two-stroke engines,” a chainsaw manufacturer may recommend using a specific brand of oil for its model. It may have special combustible additives and additives that extend the service life of the saw’s internal combustion engine.

This is what oil looks like for 2-stroke chainsaw engines from the famous Champion brand

Old two-stroke engines from the Soviet period used the same motor oil as four-stroke engines, for example the M8. Old motor oils did not contain as many fireproof additives as modern ones. In order for such non-specialized oil to provide sufficient lubrication of chainsaws, increased dosages were used.

When running in the engine, a proportion of 1:20 was used, after 1:25. Large quantities of universal oil, not designed for complete burnout, led to rapid coking and sticking of the piston rings, the formation of carbon deposits on the top of the piston, spark plug, cylinder exhaust ports and muffler. For the same reason, the spark on the chainsaw spark plug may disappear.

In advanced cases, the windows and muffler could be completely covered in carbon deposits. A thick layer of carbon deposits on the piston significantly reduced the volume of the combustion chamber.

Modern special oils for two-stroke internal combustion engines provide lubrication of components much more efficiently. Therefore, it is required almost twice as much as before - from 1:40 to 1:50.

At the same time, the engine remains clean for a long time and lasts a long time, despite the smaller margin of mechanical strength of modern internal combustion engines compared to old ones.

We also recommend reading an interesting article about what oil to use for a chainsaw chain and how it can be painlessly replaced.

What happens if you pour waste into a chainsaw?

If you don’t want your chainsaw to fail at the wrong moment, use only high-quality fuels and lubricants. Mixing waste with gasoline is prohibited. The reasons for this are the following factors:

• The viscosity of the material is different, so the grinding is not capable of providing effective lubrication of rubbing parts and mechanisms
• The waste contains small particles of metal and shavings, which, if they enter the tank, will cause clogging of the fuel filter and channel. If the lubricant gets into the cylinder along with small particles, they will leave their mark in the form of accelerated wear of the piston rings
• Emission of large amounts of black smoke, indicating oil burning

You cannot pour surrogate materials not only into the gasoline tank, but also into the chain lubrication tank. What happens if you use waste in the tank to lubricate the chain can be seen in the video.

Using the instructions, you can independently prepare the correct fuel mixture for the chainsaw to operate on. If the fuel mixture is diluted incorrectly, not only does the service life of the tool decrease, but its performance also decreases.

Correct ratios and preparation for popular brands

Different manufacturers recommend different proportions for their chainsaws. Their compliance should be treated with care. Lack of lubrication leads to failure of the internal combustion engine. Excess leads to loss of power, smoking, formation of soot with all the problems described above.

How to dilute for Stihl, in particular for the MS 180 model

1:50 for the engines of its chainsaws, including the Shtil 180 MS model . It provides the greatest power, service life and cleanliness of the internal combustion engine. It is also recommended to use motor oils in cans marked STIHL. It is important here to purchase original, but not counterfeit, products.

A mixture of gasoline with some oils is considered perishable; it is recommended to use it no later than 10-30 days after preparation.

This is not the case with the mixture of oil and gasoline recommended by Stihl. The mixture can be stored for up to 2 years. After long-term storage, the container must be shaken to remove any sediment.

Motomix is ​​a ready-made fuel mixture from Stihl, very convenient when there is no time or opportunity to mix liquids on site

How to thin a Husqvarna saw

The manufacturer recommends using special oil for HUSQVARNA in the operating instructions. It is adapted to the engines of this manufacturer, ensuring a long service life and high-quality performance. Pour in a ratio of 1:50.

It is strictly not recommended to fill in oil for two-stroke water-cooled engines, for example, for outboard motors.

It is allowed to use oils for two-stroke air-cooled internal combustion engines from other manufacturers. If the proportion is not indicated on the canister, ]Chainsaw Husqvarna[/anchor] recommends pouring an increased dose, in a ratio of 1:33.

Thus, for 1 liter of gasoline for a Husqvarna chainsaw, pour:

• 20 ml (colloquially grams) of HUSQVARNA oil (1:50).
• 20 ml of another acceptable oil, if the canister says 1:50.
• 30 ml per 1 liter of gasoline, 1:33, unless another proportion is indicated.

Husqvarna does not recommend storing the prepared mixture for longer than 30 days. Before pouring, the settled mixture must be shaken.

Oil to gasoline ratio for Partner chainsaws, in particular Partner 350

For its saws, including the 350 model, Partner recommends using Talon branded oil in a ratio of 1:40 , that is, 1 part to 40 parts gasoline.

In order to calculate the requirement per 1 liter (1000 ml), 1000 should be divided by 40. The result is 25 ml per 1 liter (1000 ml) of gasoline.

This manufacturer's instructions do not contain information about the permissible replacement of the recommended Talon oil with others. In practice, oils for air-cooled two-stroke engines and other brands are used. In this case, the proportions are already recommended by the oil manufacturers and are indicated on the canister.

Pay attention to the canister, the inscription 1:40, this once again confirms that each oil has its own recommended mixing proportions with gasoline

How to dilute gasoline with oil for Huter saws

]Hooter[/anchor] does not select any one brand of oil for its chainsaws. There are recommendations for the general type - oils classified as JASO FC or others: API TV, API TC, JASO FB for two-stroke air-cooled internal combustion engines.

If the oil does not meet these standards, problems and engine breakdowns may occur due to poor quality lubrication.

In the instruction manual, Huter himself does not name the proportions, but indicates that the mixture is made in the proportion specified by the oil manufacturer .

For example, if the canister says 1:50, add 20 ml per 1 liter of gasoline. If 1:40 is indicated - 25 ml per 1 liter.

How much oil per liter of gasoline should be poured into Champion chainsaws

For his chainsaws, Champion recommends using Champion oil for two-stroke high-speed air-cooled internal combustion engines. The proportion is 1:50 , that is, 20 ml per 1 liter of gasoline.

In addition to branded Champion, it is allowed to use oils for the same engines of other brands. Moreover, it must comply with API TV/C or JASO FC/D standards, which must be indicated on the canister label.

How many grams of oil per 1 liter of gasoline is needed for Makita saws

Makita recommends MAKITA oil for high-performance two-stroke engines for its gasoline saws. Makita pays attention to environmental protection. Oils of this brand have a minimum of polluting emissions.

Recommended proportions are 1:50, 20 ml are poured per 1 liter. Replacement with analogues of other brands is allowed, provided they comply with the international standard TS-3. At the same time, the instructions recommend adding more oil, 1:40, per 1 liter 25 ml.

When running on gasoline without oil, the engine of any chainsaw breaks down within a few minutes. Dry friction without lubrication destroys the cylinder mirror, piston rings, piston pin liner, crankshaft bearings, etc. Also, overheating due to increased friction may cause the engine to seize.

Advice from experienced people

Bogdan Mikhailovich, 51 years old

14 years of chainsaw ownership experience

Now there is a lot of oil, it is very easy to run into a fake. The point here isn’t even that it’s somehow wrong, it’s just an ordinary mineral water, and you buy it at the price of branded, famous synthetics. Therefore, it is better to buy from official dealers - at least they have normal supplies. Among the companies I can recommend Shtil, Oregon, Husqvarna is also good, but in my opinion, a little expensive. Recently, Zubr began producing its own oils. I tried it - it seems ok, and cheaper, but it’s better not to use it in professional equipment. And for household ones it will do.

Anton, 37 years old

6 years of experience using chainsaws at home

I am surprised to see how not only newcomers to gasoline technology, but also quite gray-haired guys prepare a whole canister of the mixture so as not to have to do it all over again every time. Come to your senses, people, this is a mixture; over time, it separates a little, sediment falls out, and the properties change. it must be fresh. Its maximum shelf life is less than a month. And it’s even better to chat a new one before each session, your hands won’t fall off, it’s a matter of minutes. And then they complain about problems, that the saw is sneezing and all that. Of course, the oil peeled off, the cylinder was rubbed dry, it turned out to be a burr, and then a scuff. For repairs.

How to prepare the fuel mixture?

Many experts and manufacturers do not recommend storing the prepared mixture for a long time. Therefore, you should not prepare a lot of fuel at once in reserve if it will not be used up in the next 30 days. Store fuel in the shade at moderate temperatures.

For preparation, you need measuring containers, which are sometimes included in the kit. If not, for dosage use any available container with a precisely known container for gasoline, glasses, syringes, jars and canisters with a measuring scale.

The syringe is very convenient during refilling and can serve as an excellent measuring container for oil.

Cooking video

The video shows a simple example of how you can use available containers for dosing. The author demonstrates how to make a tool for preparing the mixture from a container of household chemicals that everyone has in the house.

All chainsaws use unleaded gasoline with an octane rating of at least 90. That is, AI-92, AI-95, AI-98. Moreover, the most common and suitable option is AI-92 . Gasoline with octane ratings of 95 and 98 is recommended in cases where the engine operates primarily at high speeds. We also recommend reading in more detail about choosing gasoline.

An example of preparing 1 liter of mixture in a ratio of 1:50.

1. The container is filled to about half (0.4-0.6 l) with gasoline.
2. Pour 20 ml of oil into a clean liter container.
3. Close the lid and shake the fuel until it becomes uniform in color.
4. Gasoline is added to a liter, the cap is screwed on, and the container is turned over several times.

Gasoline that has already been diluted with oil mixes with pure gasoline that has been added very easily, so there is no need to mix too much again.

Oils are colored in different colors, red or green. Therefore, by the homogeneity of the color of the mixture or clots of different colors, it is clearly visible whether the oil has been mixed or not.

When oil is overfilled, the engine smokes. But smoking immediately after a cold start in most cases is characteristic of an unheated engine. After several minutes of operation and heating of the combustion chamber, the smoke disappears.

Fuel selection

Which fuel to choose for a chainsaw is not an idle question; the success of the unit’s operation directly depends on it. According to existing canons, good gasoline for a chainsaw is considered to be not leaded, but high-octane from a trusted manufacturer. The cleaner the fuel, the better. If gasoline has been stored in a canister for a year and a half, this will negatively affect the operation of the device, so the substance should be prepared just before starting work.

It is recommended not to use low-octane fuel and to completely exclude inexpensive oils of dubious quality. You should not use leaded fuel; it significantly reduces the life of the power plant.

It is important to ensure that the fuel does not contain alcohol or any additives that could interfere with the functioning of the power plant. Experts are still debating whether 95 or 92 is better. The first has more stable detonation indicators, but most often they still use 92. The reason is simple: questions often arise about the 95, it contains a large number of different additives that have a bad effect on the operation of the saw engine. Microdetonation occurs (piston impulse in the opposite direction), which occurs at almost every revolution of the crankshaft. If the octane number is even higher (98), then the micro-shocks will become even more intense.

The consequences of incorrect gasoline on the quality of operation of the unit can only be negative:

• The mechanism will be difficult to start.

• The power will be minimal.

• Parts will wear out more intensively.

Expert opinion

Kuznetsov Vasily Stepanovich

You should not fill your chainsaw with gasoline from the bottom of the canister. The wire channels of the carburetor have small diameters; if they become clogged, this will cause the chainsaw to break down. All fuels should be carefully filtered before use. For domestic saws "Ural", "Druzhba" the fuel grade "80" is suitable.

Refueling during run-in

During break-in, all rotating and mating components and parts of the engine are ground in. In some places, increased friction is possible, which can be relieved by additional lubrication.

The operating instructions for most models and brands do not provide specific instructions on the amount of oil for the break-in period. But many experts, with many years of experience, recommend filling 20% ​​more during break-in .

For example, if for a particular chainsaw the proportion is 1:50 (20 ml per 1 liter), then another 20% should be added, that is, a fifth - 4 ml. As a result, 24 ml per liter is poured.

The break-in period is approximately 10 engine hours. During this time, a small excess of oil will not cause any harm. However, the running-in will take place in a more gentle mode, which in the future may increase the engine's service life.

Be careful - 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 names of leading manufacturers.

• The characteristics of counterfeit products are an order of magnitude lower than the branded originals. The constant use of counterfeit products negatively 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 purchasing consumable components from a network of branded and licensed retail outlets.
• The use of substandard lubricants by service technicians is a legal basis for depriving the owner of a faulty saw of warranty repair obligations.

Can I mix oils of different colors and brands?

It is not recommended to mix oils of different brands. Firstly, they can be made on different, incompatible bases - synthetics, semi-synthetics, mineral. Secondly, different branded oils may contain different additives. How they can chemically react with each other and what is formed as a result is impossible to predict.

The main thing is that there is simply no need to do this. It is more rational to add the remaining oil of one brand to gasoline and create a mixture. And then start using another oil.

Pay attention to the inscriptions, these are 3 different Stihl oils, all different both in characteristics and color. They cannot be mixed with each other, as the manufacturer himself writes in his instructions.

Lubricants

More stringent criteria for selecting an oil component. The best option is a mineral or semi-synthetic motor oil recommended by the manufacturer, designed for use 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 analogues compare favorably with improved performance characteristics and compliance with environmental standards.

Synthetics:

• maintain performance properties over a wide range of operating temperatures;
• do not form soot;
• contain detergents, antioxidants, preservatives and other additives useful for the operation of the power unit.

How much oil to pour per 5 liters of gasoline for a gasoline saw

The amount of oil per 5 liters is calculated by simple arithmetic.

Example: recommended proportion 1:50. That is, 50 times less oil is required than gasoline.

1. There are 1000 ml in a liter. Divide 1000 ml by 50. We get 20 ml of oil per 1 liter.
2. 5 liters of oil will require 5 times more than 1 liter. We multiply 20 ml by 5. We get 100 ml per 5 liters with a proportion of 1:50.
3. If a mixture of 1:40 is recommended, divide 1000 ml by 40, recalculate using the same example and get 125 ml per 5 liters.

In any case, you should study the instructions and follow the manufacturer's recommendations. Oils are recommended not only to sell consumables of your brand, but also because they may contain components tailored to a specific brand of chainsaw, taking into account alloys, tolerances and other features.

Benefits of branded oils

Many domestic and foreign manufacturers specialize in the production of special motor oils, but the highest rating indicators are for branded products Shtil, Husqvarna and Makita.

Only in certain parameters the branded assortment is inferior to domestic motor oils of the Lukoil brand.
The list of advantages of branded motor oils:

• economical consumption;
• stability of performance characteristics under difficult operating conditions and during long-term storage;
• minimal amount of toxic compounds in exhaust gases;
• almost complete absence of soot.

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

Red, green or any other color of the oil determines whether the product belongs to the range of a particular manufacturer, and therefore is not taken into account when determining the characteristics of the material. You should be extremely careful when choosing motor oil of unknown composition and origin.

Until additional information about quality and operational parameters is obtained, it is better to temporarily abandon the use of such material.

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

Measuring containers

To maintain the correct proportion of gasoline and oil, a calculation table applied to the saw body can be used. Branded containers of leading motor oil manufacturers are equipped with built-in measuring devices that provide accurate dosage of oil for different volumes of the fuel mixture.

Measuring utensils are included in the factory kit of many budget chainsaw models. In some cases, a medical syringe with a volume of 20 cm3 will help to dilute gasoline with oil in a given proportion.

Technical characteristics of the Partner 350 S chainsaw

Keyless tension system

It began to be used relatively recently, it is considered new, if not advanced. It differs from the classic nut in the following:

• another tensioner mechanism;
• lack of external tightening nut;
• adjustment without additional tools.

Instead of a 13mm spanner nut, the lid has a wing nut (rotary cap) with a handle for hand tightening. It also has a nut, but it is hidden inside. Instead of an adjusting screw for a screwdriver, tensioning in this system is done using a tension wheel (adjustment handle).

Instead of a gear shaft there is a sprocket and a tension washer.

This system also has disadvantages:

• the mechanism itself is more complex than a traditional nut;
• installation of a cutting set causes additional problems, because makes it difficult to pair all the parts in the right order;
• the adjustment stroke is shorter, a slightly stretched chain will still serve with the traditional tensioning system, here it will sag and become unusable.