PROVIDES ADDITIVES - To conventional motor oils with antiwear additives like zinc and phosphorus (ZDDP) necessary to protect against camshaft and valvetrain damage on break-inMULTI-USE - 16oz bottle treats up to 12 quarts of motor oil--in many cases, one bottle can serve two engines or oil changes, remember to change these oils more frequently than regular motor oilsSPECIAL DETERGENTS - for improved lubricity and less detonation, allows piston rings to seat properly with less-slick oil, while antiwear additives protect other engines components to avoid excessive wearIMPROVED PROTECTION - at startup, lower oil temp, cleanlinessWHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises