What is th oil to gas mix ratio for echo pb-413t leaf blower?

The Echo PB-413T leaf blower requires a fuel mixture of 50:1, which means 50 parts gasoline to 1 part 2-stroke oil. This typically translates to using 2.6 ounces of 2-stroke oil for each gallon of gasoline. Always use high-quality oil designed for air-cooled 2-stroke engines to ensure optimal performance.