The top performing ECHO PB-2520 gas leaf blower is the lightest, fully featured handheld blower. The professional grade 25.4 cc engine produces 453 CFM and 170 MPH for a quick and easy clean up. The lawn blowers unique S-Pipe design reduces the gyro effect on user's wrist improving user comfort. This yard blower also offers variable cruise control to allow its operator to adjust while completing the job. Features: Use a 50:1 ratio of fuel to oil mix for 2-stroke cycle engines, recommend using only fresh gas with a minimum octane rating of 89 or higher (mid-grade to premium) at all times 50:1 ratio equal 1 US Gal. 89 octane plus 2.6 fl. oz. ECHO PowerBlend Oil or ECHO Red Armor Oil Gas leaf blower features a 25.4 cc professional-grade 2-stroke engine Lawn blower comes with a 5-year consumer/2-year commercial warranty Category leading blower performance Double-grid intake design reduces clogging Exclusive curved blower tube provides rotational control reducing fatigue Class-leading performance Weighs only 8.6 lbs. (dry) for reduced user fatigue New air filter design maintains a tight seal to keep engine clean Posi-loc pipes for a secure connection Unique S-pipe design reduces gyro effect on users wrist for improved comfort Variable cruise control allows user to lock throttle, reducing fatigue Shoulder harness attachment points allow for the use of shoulder harness Shop Echo Gas Chainsaws Here