Wynns
Stop Smoke

PREVENTS BLOW-BY SMOKE IN WORN ENGINES

An oil additive formulated specifically to reduce exhaust emissions (typically blue or black smoke) caused by oil burning through the combustion chamber, commonly known as blow-by smoke.
Stop Smoke is a highly effective Viscosity Index Improver providing superior thermal stability to the engine oil, preventing seepage past the piston rings.
Suggested for high mileage or vehicles using excessive amounts of oil between service intervals.
Compatible with wet clutch motorcycles when used at 5% per volume
Catalytic converter safe.