Mag 1 (00509 API SN 10W-30 Synthetic Blend Motor Oil - 32 oz. Advanced synthetic blend offers better anti-oxidancy, sludge control and TBN retention Adds an extra level of protection for high mileage vehicles Fortified to reduce seal gasket leaks to decrease oil consumption Formulated with a new ZDDP additive for extended wear performance Exceeds U.S. and import car and light truck warranty requirements for all automotive gasoline engines currently in use where a SAE 10W-30 that meets API SN, SM or SL and ILSAC GF-5 is specified