What is the correct oil to gas mixture for an ECHO PB770H leaf blower?
The ECHO PB770H leaf blower requires a fuel mixture of 50:1. This means that for every 50 parts of gasoline, you should add 1 part of 2-cycle oil. For example, if you are using a 1-gallon can of gasoline, you would need to add 2.6 ounces of 2-cycle oil.