In what proportion to dilute gasoline for a chainsaw

Gasoline for chainsaw: what to pour?

Since a two-stroke engine is used on chainsaws, where it is structurally impossible to install an oil pump, you cannot pour pure gasoline into a chainsaw! The chainsaws are filled with a fuel mixture of gasoline and oil. The proportions for different saws are set by the manufacturer, the specific number is indicated in the operating instructions.

The question is often asked: gasoline for a chainsaw. what to pour? I will try to answer in more detail.

Gasoline for chainsaw

For domestic chainsaws (Ural, Druzhba, etc.), AI-80 gasoline is used. Oils can be used domestic, such as M8-V (or early marking AS-8.10), M-12 TP, M-12TPU, MGD-14M. It is also possible to use oils from foreign manufacturers. In any case, the proportions when mixing oil and gasoline should be 1/25, that is, one hundred grams per two and a half liters of gasoline.
For modern chainsaws from foreign manufacturers, the proportions are usually equal to 1/40 (100 grams per 4 liters of AI-92), 1/50 (100 grams per 5 liters of AI-92). Use AI-92 gasoline. You can often see that the AI-95 brand will be indicated in the instructions. but with our quality of this gasoline, the octane number of which is catching up with additives, I would not recommend using the 95th if you are not sure of its quality.

about mixing proportions:

To measure the required amount of oil, you can use a syringe, a measuring bottle, a special dispenser or, for example, a bottle with a dispenser from Stihl.
Oils from different manufacturers in different colors. As you can see in the picture above, HP calm oil (mineral water) is red, more expensive synthetic ones are green. Husqvarna oil can be green or blue.


[important] Tips:
It is better to overfill than underfill! If it is written 1/50, then when you pour 25 grams per liter, terrible will not happen, since coking in this case is unlikely. But if you add 15 grams per liter, it is quite possible that this will not be enough.
Do not store the ready-made fuel mixture for more than a month (preferably less), as it loses its octane number (gasoline “runs out”).
Run out the entire tank or drain before the season to avoid loss of gasoline quality and wear of rubber and plastic seals.
Never use oils for mopeds. they are designed for lower rpm [/ important]

Oil for two-stroke engines of chainsaws

Lubrication of engine parts can ensure the proper operation of the factory mechanism only if it meets certain requirements.

These include:

  • the ability to lubricate parts. the composition should create a uniform oily film that will penetrate into the smallest grooves of the engine, and also prevent friction of the internal combustion engine elements and exposure to high temperatures;
  • smoke formation. good quality grease should not smoke. If black smoke comes out of the chainsaw muffler, then the engine lubricant must be replaced;
  • no carbon deposits. during operation, the oil should not form carbon deposits, which, settling on the walls of both the carburetor and the muffler, reduces their performance and service life;
  • detergent properties. while maintaining the engine’s operation, the engine oil for the chainsaw should clean the walls and engine parts from accumulations of tar and dirt;
  • the ability to work at extremely low and high temperatures. a high-quality lubricant for engine parts should not freeze in frost or boil in direct sunlight. It is best to choose formulations that are capable of working in the range from 20 to 40 ⁰C;
  • the ability to protect against corrosion. when operating a chainsaw in conditions of high humidity, condensate inevitably seeps into the engine, which provokes the formation of rust. Engine oil should protect the internal combustion engine components from rust. To do this, it must contain appropriate additives.

An important role in choosing a lubricant for an engine is its type. Most often, you can find mineral and synthetic oils on sale. Means of the first type have a less balanced composition. which lacks most of the useful additives. Synthetic oil is more popular because it more reliably protects engine parts from wear, corrosion and carbon deposits. That is why synthetic lubricants are more expensive than mineral ones.

There are a number of oils that are popular with both general users and experienced fellers.

These include:

  • Stihl HP. this grease shows high stability and reliable engine protection in all weather conditions. The oil resists corrosion well and practically does not smoke. The composition of the product contains all the additives necessary for the operation of the engine, including components that prevent the formation of carbon deposits;
  • Stihl HP Ultra. belongs to the group of oils of the highest category. The product has excellent lubricating properties, good resistance to wear and corrosion. It contains ashless additives, which guarantees the absence of carbon deposits on the carburetor and muffler;
  • Husqvarna HP. a product of this brand stands out for the presence in its composition of additives designed to compensate for the poor quality of gasoline used. The lubricant is made on a semi-synthetic basis and has a high resistance to corrosion.

When choosing oil for 2-stroke chainsaw engines, it is very important to study the shelf life in advance. It must be remembered that a high-quality grease will not last more than 5 years, even if it is stored in a closed container. Therefore, it is best to buy products that have a shelf life of 2-4 years.

Why is gasoline mixed with oil for refueling chainsaws

It is necessary to dilute gasoline with oil in order to avoid the failure of the internal combustion engine. The reason for this is the design features of the lubrication system for two-stroke motors. In the design of such engines there is no chamber for filling engine oil, and if you fill in fuel without lubricant, then the crankshaft, piston, bearings and connecting rods will not receive lubrication. This will significantly reduce the service life of all the listed parts, therefore, it is prohibited to fill in clean fuel.

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To make fuel mixture huyosen chainsaw

Gasoline and oil for the chainsaw must be poured in the appropriate proportions, which makes it possible to effectively lubricate the rubbing parts. Lack of lubricant or its excess will lead to negative consequences in the form of carbon deposits. In order for the tool to work properly, it is necessary from the first day of operation of the tool to fill it not only with high-quality materials, but also observe the correct proportions.

For the engine to work properly, the main thing is to fill it with clean fuel without contamination.

In what proportion to dilute gasoline for a chainsaw

Chainsaws from different companies are based on a two-stroke internal combustion engine, which drives the cutting headset of the tool. To drive the internal combustion engine, the proportions of gasoline with chainsaw oil are used. Combining gasoline with oil is a mandatory procedure, so if you just bought a tool, then you need to understand the features of its refueling.

Gasoline to chainsaw oil ratio

The proportions of oil and gasoline for refueling two-stroke engines of chainsaws of different brands is 40 to 1 or 50 to 1. This ratio is standard, which is used not only by beginners, but also by experienced sawers. It is this ratio for preparing the fuel mixture that is close to ideal, and provides lubrication of the rubbing parts of the crank mechanism and piston.

How much oil should be poured into gasoline in milliliters? Calculated per ml, the ratio of oil and gasoline 1 to 50 is 20 ml per 1 liter. To prepare the correct mixture, you should fill 1 liter of gasoline in a plastic bottle and dilute it with 20 ml of oil. To correctly measure how much oil to pour, you should take a special measuring container and fill it up to the appropriate mark. If you plan to immediately prepare 2 liters of fuel, then 40 ml of lubricant must be added to this amount of gasoline.

There are other ratios that different manufacturers offer. These values ​​of the ratios differ insignificantly, but if you have subtracted other values ​​in the instrument’s passport, then you need to adhere to them. A value of 1 in 50 or 40 is standardized. Pour 15 ml of oil into 1 liter of fuel in the summer, and in winter add at least 20-25 ml. Knowing the recipe for preparing the mixture, you should also figure out what kind of gasoline to pour into the chainsaw?

What gasoline to pour into a chainsaw?

Gasoline is just as important as the engine oil used. The engine thrust and the speed of its operation in different modes largely depend on the quality of the fuel. In addition, it is gasoline that affects the coherence of the elements of the ignition system of garden tools.

Different petrol chainsaws need to be filled with petrol with different octane numbers. Some equipment manufacturers advise using AI-80 gasoline for refueling, others. brands that produce newer gasoline saws recommend preparing a fuel mixture based on 92nd gasoline.

In any case, the only thing that is required of the owner of a chainsaw is not to experiment with the octane rating of the fuel. If the manufacturer advises to fill the fuel tank of the chainsaw only with 92nd gasoline, then this is what needs to be filled. Otherwise, the owner of the saw risks damaging the cylinder-piston group of the engine and violating the factory settings of the carburetor.

How to choose the right mineral oil

The correct raw material must be selected before diluting the gasoline with saw oil. This will make it possible not only to facilitate the process of its operation, but also to increase the resource of the engine of the apparatus.

First of all, it should be noted that almost every model of gasoline saws is equipped with a 2-stroke carburetor engine. In their design, there are 2 separate tanks. for gasoline and oil. Domestic devices require the use of conventional oil mixtures, which are used for refueling motorcycles. At the same time, devices of a foreign brand require the use of exclusively branded oil for a chainsaw. If mixtures of a domestic manufacturer were used for this equipment, then its productivity will decrease and its operational life will decrease.

If we talk about what kind of gasoline to pour into the chainsaw, then it will be optimal to use fuel with an octane rating of A-95. As for the oil, it is best to use a branded product.

Typically, technician users dilute chainsaw gasoline with a motor or transmission oil product. Each brand has individual characteristics that can be studied in the attached instructions. For example, the first option is used as fuel for Husqvarna instruments, and the Stihl saw is refueled only with the transmission.

Is it possible to pour 95th gasoline into a chainsaw?

This question is most often encountered by novice users of chainsaws. Quite often, they buy 95th gasoline instead of the 92nd recommended by the manufacturer, considering that the higher the octane number, the better the fuel quality.

In fact, this is not the case. The fact is that fuel of the 95th grade in its quality is sometimes not only not superior, but also significantly inferior to the 92nd gasoline. This is due to the fact that the composition of the AI-95 fuel is quite often “catching up” due to the introduction of various additives to it, designed to increase the octane number of gasoline.

In this regard, it is best to use gasoline exclusively of the AI-92 brand for refueling the chainsaw. This will make it possible to prevent serious damage to the chainsaw mechanisms and improve its performance in difficult operating conditions.

Chainsaw Oil to Gasoline Ratio

How much engine oil needs to be diluted per 1 liter of gasoline will be told by the proprietary operating instructions for the garden tool. For American, Japanese and Swedish models, the proportion of chainsaw oil and gasoline should be 1:40 or 1:50. This means that in 1 liter of pure gasoline you will need to dilute 25 and 20 ml of engine oil, respectively. In these cases, the gasoline mixture will be as balanced as possible and suitable for refueling powerful engines, which are equipped with most chainsaws of well-known brands.

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A little differently, you need to dilute gasoline for a Chinese-made chainsaw. In the manuals for these models, their manufacturers indicate that the proportion of the components of the fuel mixture for their refueling should be 1 part of gasoline to 25 parts of engine oil. This means that 40 ml of oil will need to be diluted in 1 liter of fuel. This difference between Chinese gasoline-powered tools and technology produced in other countries is due to the fact that garden tools made in China have a greater distance between the cylinders and pistons than more expensive branded models. Accordingly, they need 2 times more oil for mixing in gasoline.

How to choose your chainsaw oil

Oil for two-stroke chainsaw engines should be selected for more stringent requirements. Experts recommend using a mineral or semi-synthetic lubricating fluid, which is designed for 2-stroke internal combustion engines used at high speeds.

The advantage of using mineral oil for chainsaws is its low price. Synthetic fluids are more expensive, but have improved quality indicators and meet European standards.

Synthetic oils can be used with a large temperature difference, they do not create carbon deposits, they contain additives useful for engine operation.

Motor oil is produced by a large number of manufacturers, both foreign and Russian. The best quality oils are made by Husqvarna. According to some characteristics of branded products, domestic Lukoil oil is inferior.

Benefits of branded products:

  • economical consumption;
  • preservation of quality during long-term storage or operation in adverse conditions;
  • a small amount of toxins;
  • no carbon deposits.

In professional and household saws, oils prepared according to the American API-TB technology are used. An analogue of this Japanese-made JASO-FB product is also used. Liquid, which was created for 4-stroke engines, cannot be used to make a mixture.

The color of the oil, for example, green, red, indicates that the product is manufactured by a certain company. When selecting indicators and characteristics of a product, color is not taken into account. Carefully choose engine oil, the manufacturer and composition of which is unknown.

Until further data on performance and product quality is obtained, it is best not to use this oil for now. You can mix motor oils with each other, which have the same characteristics of purpose and composition, which are products of famous brands and are of high quality. Mineral and synthetic oils must not be mixed.

To prepare a high-quality mixture, it is necessary to use those branded oils or their analogues, which are recommended by the instruction manual for the chainsaw. For example, fuels and lubricants of the Husqvarna and Stihl categories can replace each other.

Experts do not advise using grease in the gearbox for chainsaws, which is produced for 2-stroke engines of mopeds and motor boats. The motors of such devices are used in milder external conditions, due to which they have low requirements for quality indicators.

How to dilute gasoline for a chainsaw

Consider how the mixture is prepared for a chainsaw. It is necessary to calculate the correct ratio of gasoline and oil for the chainsaw. For a chainsaw, they take fuel with a high octane index: AI-92 or AI-95.

To prepare the fuel mixture, it is necessary to add 30 g of oil to 1 liter of gasoline, which corresponds to the design of the saw. The resulting fuel fluid is poured into the fuel compartment. Before diluting gasoline, you should consult a service specialist who specializes in the repair of chainsaws.

In order for the saw to have a long service life, it is necessary to properly prepare a gasoline-oil mixture, for which only AI-92 and AI-95 brands can be used. The fuel must be unleaded, otherwise the internal combustion engine may break down. Do not use an old product that has expired, because over time, the fuel can change the octane number. The proportion of lubricant and fuel is strictly adhered to.

You should not save when choosing oil for Husqvarna chainsaws and others. The proportions must be observed due to the fact that excess oil can lead to the growth of carbon deposits on the chainsaw units. Excess gasoline can cause damage to the piston and damage to the internal combustion engine. So, 1 liter of fuel is mixed with 20-50 ml of oil. Husqvarna recommends adding 100 ml of grease to 4 liters of gasoline. This proportion is suitable for saws with a power of up to 1.5 kW.

For structures with a power of more than 1.5 kW, an oil ratio of 1:50 is used. That is, it is necessary to dilute gasoline like this: add 5 liters of gasoline for a chainsaw to 100 ml of oil. Partner recommends when refueling the chainsaw with fuel, dilute the fuel fluid at the following rates: add 100 ml of lubricant to 3.3 liters of fuel.

When using supersynthetic oils, the indicators are 1: 100. That is, the fuel mixture for the chainsaw must be prepared according to the recipe: add 100 ml of lubricant to 1 liter of fuel. When choosing components, you need to use the information that is given in the instructions for any modification of the saw.

Plastic bottles and other containers are often used to mix ingredients. Be careful with plastic and glass. Mixing the components may generate static electricity. Care must be taken to prevent pebbles, sand or water droplets from entering the fuel mixture. The fuel mixture must be mixed well. The prepared fuel mixture should not be stored for more than a month, as oxidation of materials may occur, and the composition of the mixture will change.

Engine breakdown, which was caused by expired fuel, is recognized in the services not under warranty. At the same time, the cost of repairs can reach 80% of the price of a new design.

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After all work with the use of a chainsaw has been completed, you need to spend the remaining fuel, turn off the engine, remove the remaining mixture.

For the best operation of the device, it is necessary to make a mixture that will ensure uninterrupted operation of the engine, complete combustion of the gasoline-oil mixture without the formation of carbon deposits, smoke or damage.

What gasoline to pour into a chainsaw

Let’s find out what kind of fuel is recommended for this type of device. Since there is a 2t (two-stroke) engine on chainsaws, and an oil pump cannot be installed on it, it is forbidden to use pure gasoline for the saw. A fuel mixture of fuel and oil is poured into the saws. The norms for refueling chainsaws of different models are regulated by the manufacturer.

Consider what kind of gasoline to pour into the chainsaw experts advise. Refueling the chainsaw is carried out with a fuel with an octane rating of more than 92. To create a mixture, you must not use fuel with an expired shelf life, made from condensate, which includes water and various impurities.

Domestic saws run on AI-80 fuel. For foreign modifications, AI-92 gasoline is needed. It often happens that the instructions indicate the grade of AI-95 fuel. But experts believe that AI-95 gasoline, which is produced in the Russian Federation, does not meet the quality standard. This fuel contains many anti-knock additives.

It is possible to use such gasoline for a chainsaw when creating a mixture only with its high quality. The complexity of the application lies in the use of additives, with the help of which manufacturers increase the performance characteristics of a fuel that has a lower octane number. Therefore, it is not recommended to fill 95 gasoline.

What should be the proportions of oil and gasoline to prepare the fuel mixture of a chainsaw

The chainsaw is started with an engine running on a mixture of gasoline and oil adapted to the ambient conditions. It is necessary to observe the proportions of oil and gasoline for the chainsaw, then the device will work stably. To achieve high power, the saw is used at high engine speeds. Therefore, increased requirements are imposed on the quality of lubricants and fuel.

How to refuel a chainsaw

Let’s take a look at how to refuel your chainsaw. Failure to feed the saw correctly could pose a threat to the life and limb of the operator.

There are rules that must be followed when refueling the saw:

  • do not spill oil and fuel mixture;
  • the place where the saw will be refueled must be flat;
  • the place must be more than 2 m away from the area where the device will be used;
  • the site must be located away from fire; no smoking in this place;
  • while the fuel tank is filling, you need to fill the oil tank, which is intended for automatic chain lubrication; you can distinguish containers by special icons;
  • before pouring, wipe the container necks with a rag;
  • during operation, grease and gasoline must not be spilled, so you need to be careful when unscrewing the canister caps; when refueling, it is better to use a funnel;
  • care should be taken when tightening the lid with the latch;
  • experts advise not to fill the container completely, but to leave some free space.

During the operation of a properly refueled chainsaw, it is necessary to regularly check the tightness of the containers and the operation of the motor. If the chain gets too hot, or gasoline is consumed too quickly (faster than oil), this should alert you. Before starting work, the chainsaw is run in.

With proper operation of the chainsaw, 1 tank of gasoline should be enough for 30 minutes of operating the device at maximum load. When gasoline runs out, there is still grease in the second container, but in a small amount.

Storage advice

The mixture must be prepared in the amount necessary to carry out a small amount of work, since with prolonged storage of the solution, its quality characteristics deteriorate. The prepared mixture must be spent within several days.

proportion, dilute, gasoline, chainsaw
A fuel mixture that has been stored for about a month will reduce engine performance. Resinous substances are formed in the nodes, and carbon deposits appear, the piston rings lose their mobility. The longest shelf life of the mixture is no more than 2 weeks. During this period, the solution will not lose its quality. If the air temperature is more than 25ºC, then the shelf life of the product is reduced to 10 days.

Some experts allow the use of an expired mixture to save money. To do this, it can be spent gradually, gradually mixing it into a fresh solution in a volume of no more than 10% of the total amount of the mixture. The finished gasoline-oil mixture must be filtered.

If you follow all of the above recommendations, then you can ensure the reliable operation of the chainsaw. Also, when performing work, safety precautions must be observed, since the chainsaw works using a chain rotating at high speeds and, if the rules of operation are violated, it can pose a danger to the worker himself and the people around him.