The fuel mixture for a Stihl chainsaw is 50:1, which means 50 parts of gasoline to 1 part of 2-cycle oil. For example, if you are mixing 1 gallon of gasoline, you will need to add 2.6 ounces (75 milliliters) of 2-cycle oil.
Note: Some newer models of Stihl chainsaws may require a 40:1 fuel mixture. Please refer to your chainsaw's owner's manual for the correct fuel mixture ratio.
Mixing Instructions
1. Measure out the correct amount of gasoline and 2-cycle oil.
2. Add the 2-cycle oil to the gasoline.
3. Shake the mixture thoroughly to ensure that the oil and gasoline are well-mixed.
Note: It is important to mix the fuel and oil thoroughly to prevent engine damage. If the fuel mixture is too rich (too much oil), it can cause the engine to run poorly and foul the spark plug. If the fuel mixture is too lean (too little oil), it can cause the engine to run hot and seize up.
Additional Tips
* Use fresh fuel and oil. Old fuel can break down and become contaminated, which can cause engine problems.
* Store the fuel mixture in a cool, dry place.
* Use the correct fuel mixture ratio for your chainsaw.
* Follow the manufacturer's instructions for mixing and using the fuel mixture.
