Royal Purple (06050-6PK API-Licensed Heavy Duty SAE 50 High Performance Synthetic Motor Oil - 1 Quart, (Case of 6)

Enhanced additive technology prevents metal-to-metal contact beyond both GM dexos1 and ILSAC GF-6 specs A 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) Advanced additive chemistry helps reduce Low Speed Pre-Ignition in today’s turbocharged Gasoline Direct Injection engines No rust observed in standard industry testing Patented additive technology prevents the white sludge and lubrication starvation that can occur with higher concentration gasoline-ethanol blends