Echo Weed Eater Fuel Mix. Commercially prepared premix is best but if you are going to mix your own, follow these best practices to minimize risk to your weed eater’s engine: W do not mix directly in.
You need to mix 40 parts gas to one gallon of oil used. However, gradually using lower quality fuel will bog the engine down and one day, the engine may not start at all. The gas should contain a maximum of 10 percent ethanol.
