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. or

Gas powered chainsaw features a 26.9 cc professional-grade 2-stroke gas engine

Chainsaw comes with a 1-year commercial/5-year consumer warranty

12 in. bar length handles a wide variety of lightweight climbing and in-tree use

i-30 starter for 30% reduction in starting effort

G-force engine air pre-cleaner for reduced air filter maintenance

Automatic， clutch-driven oiler for reduced oil consumption

Lightweight with incredible torque and throttle response

Inertia chain brake stops chain in a fraction of a second

Rear-mounted， tool-less air filter cover for easy access

Side access chain tensioner for quick chain adjustments

Safety tip (kick guard) sold separately as an accessory.