Such is the case with motor oil. It all looks the same ... we did sit down with Royal Purple Vice President of Marketing Mark McFann to get the scoop on the chemistry behind motor oils.

Royal Purple's vivid motor oil doesn't just promise protection — it sells performance in a bottle. With claims of it being stronger than conventional oil, better oxidation resistance ...

along with the GM dexos1 gasoline engine oil approval. Royal Purple’s Synthetic Oil features enhanced additive technology that helps to prevent metal-to-metal contact beyond both GM dexos1 and ...

Royal Purple is an interesting brand of motor oil. I can't tell you the number of times I had customers bring their own purple bottles in for oil changes, all the while lecturing me on the merits ...

2. Starting with the differential we filled it with three quarts of Royal Purple's Max-Gear SAE 75w-90-gear oil. Moving back to the motor, Sam replaced the oil filter with K&Ns Performance Gold ...

Royal Purple’s BioMax environmentally acceptable lubricants meet all environmental standards mandated by the Environmental Protection Agency and are Vessel General Permit (VGP) compliant for use in ...