Royal Purple 01530 5W-30 Multi-Grade Synthetic Motor Oil 6 Quarts Royal Purple® High Performance engine oils carry the current API and ILSAC engine oil licenses, as well as the GM dexos1™* gasoline engine oil approval.Enhanced additive technology prevents metal-to-metal contact beyond both GM dexos1™ and ILSAC GF-5 specsA low coefficient of friction results in optimized fuel efficiency (the fuel economy of our 5W-30 meets the fuel economy requirements of a 5W-20 oil)Patented anti- wear additive chemistry minimizes the harmful effects exhaust gases pose to the catalystPatented additive technology prevents the white sludge and lubrication starvation that can occur with higher concentration gasoline-ethanol blendsNo rust observed in standard industry testing
