Lucas Oil 11100 1 QUART/946ML ENGINE OIL STOP LEAK TOP OFF ADDITIVE

High-quality engine oil additive blended from the finest base oils, both petroleum and synthetic. Effective seal swell agents are used to condition hard and shrunken seals and gaskets. Mixes with all engine oils, conventional and synthetic and at any viscosity grade. 1 quart treats up to 6 quart capacity.