How to Dilute Saw Gasoline

How to dilute gasoline for a chainsaw?

As fuel for a chainsaw, high octane gasoline is used: AI-92 or AI-95.

dilute gasoline for chainsaw

30 g of special motor oil should be added per 1 liter of gasoline. The resulting mixture is poured into a special compartment for fuel.

To dilute gasoline for chainsaw. before this, consult with specialists. It is best to ask those who work in the service center for their repair.

They ate teeth on this.

And the sellers who advertise them in the supermarket and hang us up all kinds of noodles on the ears will not tell us anything worthwhile.

It was like that with me, but not with a saw, but with a scythe. Worked poorly, the plant is not very, detonated hard and did everything to mix gasoline and oil as traders said.

But when I turned to the service center, they said a completely different ratio of fuel parts.

And now everything is working fine.

For the saw you need to take gasoline AI-95 or AI-92 and mix in proportion to oil. in 1 liter of gasoline 40gr of oil.

How to breed gasoline for a chainsaw

how to dilute gasoline for a saw

In order for the chainsaw to serve for a long time and not cause problems with repair, you need to properly prepare the fuel mixture. Online forums abound with questions on this topic. We interviewed experts and compiled a brief instruction.

To prepare the fuel mixture, use AI-92 or AI-95 gasoline. A lower octane will not work. Gasoline is not necessarily leaded (otherwise the engine will fail) and not old (the octane number may change over time). It is forbidden to use oil for boats and four-stroke engines.

The main issue is proportions. Excess oil will cause carbon deposits on pistons and candles. Excess gasoline will cause seizure on the pistons and a quick engine breakdown. On average, one liter of gasoline is mixed with 20-50 ml of oil. Stihl and Husqvarna, for example, recommend taking 100 ml of oil for 4 liters of gasoline. The specified proportion is optimal for chainsaws up to 1.5 kW. For chainsaws with a power exceeding 1.5 kW of the same grades, use a proportion of 1/50 (100 ml of oil per 5 liters of gasoline). Recommendations from Partner and Jonsered: 1/33 proportion (3.3 liters of gasoline 100 ml of oil). Supersynthetic oil is added at the rate of 100/1. These figures are approximate. Always use the information given in the instructions for the specific model of the chainsaw. To a lesser degree, trust the numbers indicated on the oil labels.

Video: How to Dilute Saw Gasoline

What to mix? On sale are canisters with graduated divisions and two holes. for oil and gasoline. Pour the ingredients, twist the lids and mix, tilting the container.

Many use glass and plastic bottles, baby horns and syringes. Be careful with glass and plastic, beware of static electricity. Ensure that no solid particles or drops of water get into the mixture. Be sure to mix the mixture thoroughly.

Ready fuel can not be stored for more than 25-30 days, because the oxidation process changes its composition. Engine damage caused by overexposed fuel is recognized as non-warranty. The amount of repair reaches 80% of the cost of a new chainsaw. After the end of the working season, use up the remaining fuel, switch off the engine, remove the remaining fuel mixture.

Remember, your goal is to create a mixture that will ensure uninterrupted operation of the engine, complete combustion of fuel without the formation of soot, smoke or scuffing.

What to pour gasoline in the chainsaw Stihl?

The work of any chainsaw, a wide selection of which is presented at It is provided with a 2-stroke engine, the design of which does not imply the presence of an oil pump. That is why only a mixture of gasoline and oil is poured into them. In its pure form, the use of gasoline is strictly prohibited.

Proportions of the mixture for refueling Stihl chainsaws

Specific proportions should be indicated by the manufacturer in the operating instructions. Quite often, it is written in them that it is necessary to fill in gasoline of the AI-95 brand. But the octane number in domestic fuel in most cases is reached by various additives, which significantly reduces its quality. Therefore, it is recommended to use AI-92 brand gasoline to refuel modern Stihl chainsaws.

Oils are selected specialized for a 2-stroke engine, corresponding to the power class of a chainsaw. the best option would be a mixture of the same brand Stihl. They have red (mineral) and green (synthetic) colors.

A fuel mixture of gasoline and oil is prepared in strict compliance with the manufacturer’s recommendations. For Stihl chainsaws, the proportions are usually 1:50, that is, 20 grams of oil must be added to 1 liter of AI-92 gasoline.

You can measure the amount of oil by any means. a syringe or some measuring utensils. But the most convenient to use are dispenser bottles in which Stihl oils are available.

Important Tips

In order for the Stihl chainsaw to work productively for many years, you must adhere to the following recommendations:

  • Gasoline should be fresh, not from a canister a month ago.
  • It is forbidden to use oils for 4-stroke engines. It will not completely burn out, which will lead to the formation of soot and the early failure of the cylinder-piston group (CPG).
  • In a 2-stroke engine, the oil should burn without residues, so it is advisable to use synthetics, which is characterized by the formation of fewer residues of combustion and smoke.
  • When diluting the mixture, it is better to add more than the recommended amount of oil, but within a reasonable range. 5 grams of excess per 1 liter of gasoline will not lead to coking. Larger amounts can cause carbon deposits and damage to the CPG. If you pour 5 grams less than indicated, this is fraught with overheating of the piston and cylinder.
  • Do not use the prepared mixture a month ago.
  • It is forbidden to use oils for mopeds. they are not intended for chainsaws, as they are designed for fewer revolutions.
  • After the season, the mixture must be completely consumed or drained to avoid loss of gasoline properties, as well as wear of the seals.