Royal Purple Multi-Grade Motor Oil, 15W40, 1gal Bottle

Royal Purple Motor Oil Combines premium base oils with proprietary additive technologies to create high performance motor oils that optimize engine performance and provide superior protection. No special procedures are necessary when upgrading to Royal Purple. Royal Purple motor oil is fully compatible with mineral or other synthetic oils. Royal Purple recommends waiting until the manufacturer’s first scheduled oil change in new gasoline engines before upgrading to Royal Purple.

Royal Purple’s API licensed motor oil delivers superior protection and improves performance in gasoline and diesel engines. Royal Purple’s API SN licensed motor oil meets ILSAC GF-5 and Dexos1 performance requirements.

For those seeking enhanced performance in vehicles not under warranty, we recommend our HPS Series of high performance motor oils with our proprietary Synerlec additive technology.

For racing applications, we recommend our XPR – Extreme Performance and Racing motor oil.

Royal Purple motor oil is compatible with other mineral and synthetic motor oils. It’s available in 0W-20, 0W-40, 5W-20, 5W-30, 5W-40, 10W-30, 10W-40, 15W-40 and 20W-50 weights. Royal Purple also makes mono-grade motor oils in SAE 30, SAE 40 and SAE 50 weights.

For improved performance in two-cycle engines, check out Royal Purple’s HP 2-C.