Quaker State has formulated its motor oils to meet the toughest industry tests.  Quaker State Advanced Durability that provides 2x the wear protection of the standard industry test. Enhanced Durability, that provides protection to those vehicles that do a lot of stop and go driving or towing, such as the 4x4, SUV & Truck motor oil and Quaker State's very best Ultimate Durability Q-Horsepower Full Synthetic.
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