What octane gas do you put in a chainsaw?
Both brands of pro saws are designed to burn fuel rated at 89 octane or higher. Most regular grade fuel has an octane rating of about 87. This is not enough. Click to see full answer. Hereof, can I use premium gas in my chainsaw? So running a higher octane than you need has no effect on the engine, it just burns normally.
What kind of fuel do you use in a Stihl Chainsaw?
There is an empty and clean fuel can and fresh unleaded fuel that you will need. We recommend a 50:1 mix ratio for use with STIHL 2-Stroke oil. You will need to mix 25:1 if you are using a different brand of oil. What kind of fuel does a STIHL chainsaw use?
How long can you use ethanol in a Stihl saw?
STIHL currently recommends that you do not store or use fuel older than 60 days, and preferably no longer than 30 days, even with a stabilizer. Read more about storing your outdoor power equipment. My dealer tells me that ethanol can affect the fuel systems in your saws. Is this true? STIHL products can use gasoline blends with up to 10% ethanol.
Can I use ethanol in my Stihl fuel mix?
All STIHL gasoline-powered engines can only be used with up to a 10% (E10) blend of ethanol in the gasoline/engine oil mix. How long can I store fuel mix if I add a stabilizer? STIHL currently recommends that you do not store or use fuel older than 60 days, and preferably no longer than 30 days, even with a stabilizer.
Can I use 93 octane in my STIHL chainsaw?
STIHL recommends that customers use a minimum of 89 octane fuel. If a customer chooses to use a 91 or 93 octane fuel, no damage to the engine will result. However, using an 87 octane fuel could lead to serious engine damage.
What is the best fuel to run in a STIHL chainsaw?
To start, both Stihl and Husqvarna recommend the use of high octane unleaded gasoline. Both brands of pro saws are designed to burn fuel rated at 89 octane or higher. Most regular grade fuel has an octane rating of about 87.
Is premium gas good for chainsaw?
For those wondering “Is premium gas better for small engines?” the answer is most likely no. That's because small engines are not built with high compression ratios. There is no threat of engine knock taking place.
Should I use ethanol free gas in my STIHL chainsaw?
STIHL recommends the use of STIHL MotoMix® premixed fuel which is pre-mixed with STIHL HP Ultra synthetic oil. STIHL MotoMix® contains no ethanol and has a storage life of up to two years.
Is E10 petrol OK for STIHL chainsaw?
As a rule, E10 fuel is compatible with all STIHL chain saws and power tools, as well as VIKING gardening tools with engines by Briggs & Stratton, Kawasaki and Kohler. A carburetor adjustment may be required in order to compensate for the changed fuel composition.
Do STIHL chainsaws take regular gas?
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What kind of gas should I put in my chainsaw?
Unleaded gasoline with a minimum octane rating of 89 is recommended. A lower octane can cause some issues, such as increased engine temperature, increased piston seizures, and engine damage. Stihl offers 2-cycle oils made especially for Stihl chainsaws. Premium quality 2-cycle fuels provide protection for your engine.
Is high octane gas better for small engines?
Small engines have low compression ratios, meaning they won't likely benefit from anything special in the gas like a higher octane rating.
Is higher octane fuel better?
The higher the octane rating, the less likely the petrol is to explode under pressure. High-performance engines typically compress their fuel more. By using higher octane fuel, you're able to avoid unexpected explosions that might damage your engine.
Is non ethanol gas better for chainsaws?
Non-Ethanol gas is the best option for your smaller summer engine equipment, machinery, and recreational vehicles. This includes chainsaws, lawn mowers, and motorcycles.
Will E10 fuel damage my chainsaw?
We recommend in all of our owners' manuals that you should only use high-quality brand-name petrol with a minimum octane rating of 90, but we can reassure you that petrol with an ethanol content of 10% or less, like the new E10 petrol will not cause a problem with your STIHL petrol tool.
What kind of oil should I use for a Stihl engine?
It is best to use STIHL two-stroke engine oil which is specially formulated for STIHL engines and helps to prolong engine life. The engine, gaskets, fuel lines and fuel tank may be damaged if poor quality engine oil is used. To mix the fuel, first pour the engine oil and then the petrol into a suitable can approved for use with fuel.
How to mix petrol and oil?
To mix the fuel, first pour the engine oil and then the petrol into a suitable can approved for use with fuel. Before pouring this mix into the fuel tank, first mix it thoroughly by shaking the can. Take care when opening the can as pressure may have built up inside.
Gasoline selection
The first question that a user is faced with before starting work is which gasoline to pour into a Stihl chainsaw.
Oil selection
Unlike four-stroke engines, Stihl 180 chainsaw oil is poured directly into the gas tank, pre-mixed with gasoline. It is recommended to fill in the chainsaw oil specified in the instructions for this model.
Stihl Oil
Stihl produces its own oil for its tool. High-quality Stihl 2-stroke engine oil is highly lubricating.
How to breed
The Stihl saw mixture is prepared by mixing high-octane gasoline and two-stroke engine oil. The proportion of oil and gasoline for a chainsaw is as follows: if the unit’s power does not exceed 1.5 kW, the ratio will be 1:40 (i.E. 25 ml of oil per liter of gasoline), and at a power above this value. 1:50 (20 ml 1 liter).
Proportions of gasoline and oil for Stihl trimmer
German manufacturer of high-quality cutting tools Stihl, in addition to chainsaws, produces motor mowers. This is an indispensable tool for mowing grass and lawn trimming, characterized by lightness and mobility.
Useful Tips
When calculating the proportions, remember that it is better to pour oil a little than to save on it: the formation of soot is dangerous only to a significant excess of lubricant, and a slight excess will not harm the engine. If it is not enough, the consequences can be more dangerous.
Why do Husky and Stihl say 89?
Husky and Stihl both say run 89 and that's because mixing the fuel with oil lowers the octane a bit. Running a higher octane fuel will not yield better power unless the saw is tuned to take advantage. Most of us do not play with the ignition timing on our saws.
Why does my engine tilt when running lower octane gas?
The real issue with running lower octane gas in a small 2-stroke engine is that it does not burn as evenly. Uneven burning and flaring at TDC causes uneven pressure on the piston, and that in turn can cause the piston to tilt slightly as a result (if a flare is not parallel to the centerline of the bearings).
Why do you have to retune a carburetor when running a saw?
Same goes when you run lesser gas in your saw, chances are you will have to richen the carb because of the lower octane rating.
Does Dolmar 5100 run on E10?
They have also designed and re-tuned their current line of saws to run on American mid-grade ethanol E10 gasoline. Dolmar had some issues with their 5100 saws not being re-tuned for crappy American grade gasoline (German gas has far higher octane than US gas). They ran too lean here.
