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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-6 specs. Advanced additive chemistry helps reduce Low Speed Pre-Ignition in today’s turbocharged Gasoline Direct Injection engines. A low coefficient of friction results in optimized fuel efficiency. Patented anti-wear additive chemistry minimizes the harmful effects exhaust gases pose to the catalyst. Patented additive technology prevents the white sludge and lubrication starvation that can occur with higher concentration gasoline-ethanol blends. No rust observed in standard industry testing. dexos1™ is a registered trademark of the General Motors Corporation.

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