2-cycle Echo leaf blowers use a gas and oil mix at a ratio of 50:1 (50 parts gasoline to 1 part oil). Echo leaf blowers require an unleaded gasoline with a minimum octane rating of 89 and a maximum ethanol content of 10%.

Echo leaf blowers typically take a two-stroke oil and gasoline mixture for fuel. This mixture should be mixed in a 50:1 ratio of gasoline to two-stroke oil. It is important to mix the fuel correctly and use only high-quality fuel and oil to ensure your Echo leaf blower runs properly and efficiently.