Royal PurpleAPI Licensed Enhanced Additive Technology Synthetic Motor Oil 5W40 - Fuel Efficiency - 1 qt (Case of 6)

I put royal purple in all my performance vehicles ,while more expensive than off the shelf oil,I have never had a engine fail due to lack of lubrication even with 100 of thousands of mileson them.Some oils the film breaks down when you are at high rpm for very long thus causes bearings to wearand this puts metal in the oil ,which leads to catastrophic failure in short amount of time.

It is what was was advertised. Delivery was timely.

Extremely expensive for what it really is. You can absolutely get quality oil for much cheaper price.