Using the proper fuel/oil mix in your Echo chainsaw is crucial for a prolonged engine life. Echo uses two-cycle, air-cooled engines on its power equipment. These engines use a 50:1 ratio of fuel and oil.
Things You'll Need
Use a gas can to make your mix. Your local hardware store should have gas cans designed for two-cycle fuel. These cans hold 1 1/4 or 2 1/2 gallons.
Measure the one gallon of unleaded gas you put in the can. Echo recommends using 89 octane fuel.
Add 2.6 ounces of two-cycle oil to the gas can.
Fill the tank on your chainsaw and get to work.
Measure the fuel and oil precisely for long engine life.