Sea Foam spray is a petroleum based product for use in cleaning harmful gums, varnish and carbon from air induction systems and combustion chambers on all 2-cycle and 4-cycle gasoline engines Cures hesitation, stalls, pings, flat spots and rough idle due to carbon buildup Use to store and fog 2-cycle and 4-cycle engines Helps pass emission tests, EPA registered Cleans intake valves and pistons Cleans catalytic converter odors Restores power and pickup Oxygen sensor safe