For Best Results: Add SlipCoat to oil at any time. After adding, drive or idle engine for 15 minutes to completely treat all bearings, cylinders and camshafts. 16 oz. treats to 4 to 6 quarts of oil in: cars, trucks, marine engines, diesel engines, tractors, motorcycles (excluding wet clutch), motorhomes, power steering units, manual transmissions, differentials (including limited slip), power mowers, A.T.V.’s, generators, air compressors and heavy equipment. Will not void new car warranties.