Pro Honda GN2 is the only oil that has been tested and approved by Honda R&D for use in all older liquid cooled and air cooled 2-stroke Honda motorcycles, ATVs and scootersIts unique, clean burning formula reduces exhaust smoke, carbon buildup and varnish depositsHelps prevent spark plug fouling, ring sticking and exhaust pluggingGN2's superior lubrication extends service life for piston rings, bearings and helps prevent against rust and corrosion1 Quart