More protection (Compared to industry standard sequence IVA). For gasoline engines. American Petroleum Institute certified. The Industry Tough Guy: Those first few miles after you pour your brand new oil into your car? Child's play. It's the thousands of miles of stop-and-go traffic, idling and extreme temperatures that is the true test of toughness. And that's exactly the test that Quaker State Advanced Durability motor oil is put through. In taxi fleets across North America we test our oil to ensure it delivers. And delivery it does.
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