Fight the formation of sludge and varnish deposits in your engine with Valvoline(TM) 20W-50 Premium Conventional Motor Oil. Featuring anti-wear additives that dramatically reduce engine damage, this motor oil provides protection to critical turbo unit components. It also reduces friction and oil evaporation for improved gas mileage. This 20W-50 motor oil is ideal for older cars with air cooled engines. It exceeds current U.S., Japanese and European wear tests for gasoline and gasoline turbo-charged engines.