In what proportion to mix gasoline with oil for a chainsaw
The heart of any chainsaw is a two-stroke combustion engine. Its performance, reliability and durability depend on the fuel used, as well as regular maintenance.
One significant difference between two-stroke chainsaw internal combustion engines and four-stroke engines, such as car engines, is the need to add oil directly to the gasoline for the chainsaw in the gas tank, rather than in a separate oil system. It is very important to strictly observe certain proportions of gasoline and oil, otherwise chain saw failure is unavoidable. Strange as it may seem, but this rule is not observed by all. Many chainsaw owners start experimenting with the proportions or do not pour lubricant at all in order to save money. And as a result, serious problems arise that are more expensive to fix than just buying lubricant.
How to choose chain saw oil?
In order to answer this question, you need to determine the type of your device. For chain saws used in the garden and construction industry, adding oil to petrol is an indispensable procedure to increase the efficiency and the operating life of the device.
Chainsaw Basics: Fuel and Oil
So what factors should be taken into account when choosing a saw??
- the place where the saw is made. Yes, yes, suddenly, the first point is exactly that. The fact is that domestic chainsaws require only simple oils for maintenance. At the same time, top-of-the-line foreign devices may require special oil to work at the maximum specified rates.
- Is it possible to pour domestic oil into gasoline for a chainsaw of foreign manufacture? Yes, but in this case the figures of power may not differ for the better.
- Get to know the brand of your saw and what people write about it in the forums. Very often it is necessary to take into account the specifics of the filling of some companies, for example, for some suitable for engine oil, and for others strictly transmission oil.
- The manufacturer of the equipment must specify the preferred composition of the lubricant for his device;
- After all, you can use the internet if the oil for your brand of saw is not available in construction stores. That way you are sure to use the right oil to give your chain saw a long service life.
What’s important in choosing chain saw oil is the season in which you use the saw. When working in sub-zero temperatures, for example, even the best-quality oil may not work due to crystallization. That’s why the tool has to be adapted for use in such weather conditions from the beginning. For example, it is not unreasonable to warm up the carburetor during operation. If the saw is also stored in an unheated room, it should always be warmed up before use.
Many people have to face the dilemma of whether to use mineral or synthetic oil? Synthetic version, as in the case of cars, costs more, but does not create fouling inside the device.
We would advise you to use synthetic oil from the first start, but if you have been using mineral oil for a long time, you should not change it. The reason for this is fouling that can fall off and cause damage to the saw.
The power units in chainsaws are internal combustion engines fueled by certain brands of gasoline, diluted with the required portions of oil.
Knowing and following the correct mixture of fuel is the key to long use, productive use of small tools.
The primary fuel ingredient is AI. Below or above 92 octane number is not recommended. Optimal for many types of mechanized chainsaw machines made in Russia or abroad.
The ideal gasoline to oil ratio for a chainsaw:
Consumption rates of fuel and lubricating grease are indicated in instructions accompanying purchased products. Violation leads to loss of power, premature engine wear. Truth is obtained by research methods, empirically at home and abroad.
What kind of gasoline to put in a chainsaw??
According to experts, you should use unleaded gasoline, obtained by adding lead-free additives, whose octane number exceeds 90. Foreign models require the use of higher grades of gasoline and branded oils from the tool manufacturers. AI-92 grade fuel is considered to be perfect. How to dilute gasoline for STIHL 180 chain saw? In this case, it implies oils in a 1:40 mixture. It is quite suitable for it and fuel AI-95, but according to professionals it is better for chainsaws do not use.
The fact that it is made on the basis of AI-92 with the use of certain additives that change the quality of the fuel. These components deposit on the inner parts of the tool and when they reach a critical mass, they begin to flake off, disrupting the operation of the mechanism. The best option is to follow the instructions that come with the chosen model. It is recommended to use fresh gasoline, because during long-term storage in tanks the octane properties are lost.
Oil to gasoline ratio for chainsaws
Every chainsaw company adjusts the engines and base carburetors to work with different amounts of lubricant. Therefore, the proportion of oil and gasoline for a chainsaw can be slightly different.
Most often, when mixing fuel with oil, the manufacturers advise to use a proportion of 1:50, or 1:40. This means that 1 part of the motor grease should be mixed in 50 or 40 parts of fuel, respectively.
To translate the proportion into a more accessible formulation is quite simple. For example, 1 liter of fuel has 1000 ml. If 1000 ml divided by 40, it is 25 ml. This means you need 25 ml of grease diluted in 1 liter of gasoline. The same formula must be used when the manufacturer recommends preparing the fuel mixture exclusively in the proportion of 1:50. For this purpose, 1,000 ml should be divided by 50, resulting in 20 ml. This means that 20 ml of engine grease should be diluted in one liter of fuel.
Things are a little different with Chinese chainsaws. Their manufacturers advise diluting gasoline for chainsaws in the ratio of 1:25. This means that the owners of Chinese tools need to stir exactly 40 ml of lubricant in 1 liter of pure gasoline. This ratio is due to the fact that these chainsaws are slightly inferior to their Western counterparts in terms of quality of assembly and component selection. In American, European, and Japanese engines, the distance between the cylinders and pistons is much shorter than in chain saws from China. In this regard, the amount of lubricant required to operate the first. much less.
Preparing the fuel mixture
The fuel mixture is prepared for the chainsaw, prepared by following the exact proportions specified in the manual of the particular model or on the package of oil. When mixing, the values given in the table below can be used.
If you follow the exact proportions, you will achieve optimum fuel consumption. To obtain a precise dosage of oil, we recommend the use of a syringe filled with medicinal fluid.
Important: The fuel mix for a regular Chinese chainsaw is mixed at a 1/50 ratio. That is, for one liter of gasoline, you need 20 grams of oil.
Recommendations for the preparation of the fuel mixture:
- The mixing process should be done in a dry, clean container; it is not advisable to mix fuel in the tank of your chainsaw;
- The container is filled with gasoline first, then oil;
- It is not recommended to change the proportions for one chainsaw;
- Do not use fuel mixture that has been mixed more than 60 days before use;
Preparing the fuel mix: oil and gasoline proportions for the chainsaw
The chainsaw engine is the heart of the machine, so it is very important to use the proper fuel mixture.
The fuel mix for a chainsaw is made of two components. oil and gasoline. Chainsaws are equipped with two-stroke engines, so oil is not added to the lubrication system (as with a four-stroke engine), but directly to the gasoline. It is very important to observe the correct proportions of ingredients and, of course, in no case try to work on pure gasoline, because that way you will very quickly “kill” the chain saw.
The oil must be designed for two-stroke engines of gardening and forestry machinery (that is, under no circumstances use oil for boat motors or scooters). As practice shows such oil can be bought in any store or service center, where chain saws are sold or serviced.
If we talk about what gasoline to fill a chainsaw, it is optimal to use fuel with the octane number of A-95, in this case, the savings on fuel can turn out badly. European manufacturers often indicate that you can use gasoline A-90 or A-92, but in post-Soviet countries the quality of gasoline is inferior to European, so in our realities it is better to use higher-quality gasoline.
As for the very proportion of gasoline-oil mixture, then everything is simple: you need to clearly follow the instructions to the tool. All chainsaw manufacturers indicate the necessary ratios in the instruction manual or in the tool’s certificate, moreover, the proportions for filling the chain saw may differ depending on the model of the chain saw. As a rule, ratio of oil and gasoline to the gasoline of famous manufacturers is 1:40 or 1:50, which means one part of oil to, for example, 40 parts of gasoline.
Now do the arithmetic. 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and you get 25 ml of oil. If you perform the same actions for 1:50 ratio, you get 20 ml of oil for 1 liter of gasoline.
As for budget Chinese-made chainsaws, the situation is a little different. Gasoline to oil ratio for chainsaws made in China 1:25, that is 1000 ml of gasoline divided by 25, we get 40 ml of oil. the reason is that brand name chainsaws have a solid build and the distance between pistons and cylinders in the engine is much less than in Chinese made chainsaws, that’s why the required oil amount is twice as much different.
To measure out the right amount of oil, use an ordinary medical syringe of sufficient volume.
One more subtlety. pour petrol into a dry gasoline canister first, and then the oil. The procedure on the contrary is fraught with low quality fuel mixture, because oil is denser and will stick to the bottom of the canister. So it is not possible to mix it well.
Always prepare fuel mixture in a canister and fill the tank with already prepared special fuel! Never prepare and do not mix it directly in the fuel tank of a chainsaw!
If with the question of how to dilute gasoline for a chainsaw figured out, then and about the storage conditions and expiration dates of the fuel mixture it is worth saying a few words. It is best and easiest to prepare a petrol-oil mixture for 1 liter of gasoline, it is recommended to do it immediately before working with the tool. Gasoline chainsaws have a capacity of 0.3 to 1 liter. In terms of domestic use for one session rarely uses the entire amount of the prepared combustible mixture, so the remainder can be saved until the next session. It is necessary to store the fuel mix in a special gasoline canister in a dark, dry place. It is optimal to calculate that The storage period of the ready mixture will be 7-10 days
The fact that the oil presented now on the market is not synthetic, and organic, that is natural. After 10 days all lubricating properties are lost, gasoline simply “eats up” the oil. Naturally, it is no longer possible to use such fuel, it can cause breakdown and failure of the chainsaw.
At the end of the work it is necessary to drain the fuel mixture and start the chainsaw. the tool will stall (in order for the saw to have a dry carburetor) and now you can leave it until the next session of operation.
Gasoline and oil ratios for a chainsaw: peculiarities of making a fuel mixture
Sellers tell buyers when buying a chain saw that it is forbidden to fill it with “pure” gasoline. Many customers learn about it for the first time, wondering why they need to dilute gasoline with oil. If you ignore this rule, the consequences for the tool can be disastrous. In most cases, even an engine overhaul will not help. In this article we‘ll find out what the proportions of gasoline and oil for filling gasoline saws should be, as well as what can be the problem of noncompliance with this rule.
Recommended brands of chainsaw lubricants
The specific brand of gasoline for the saw is always given in the instruction from the manufacturer. It is recommended to follow it strictly.
Do not confuse the brands and do not use them improperly. It is guaranteed to lead to the breakage of the tool. But its repair can cost almost as much as a new saw.
The most popular chainsaw lubricants are the following brands:
Each branded oil container always indicates the oil and gasoline ratio for a chainsaw (STIHL, Husqvarna, Partner, Ural), which must be adhered to when making the mixture.