Royal Purple 31530 / 301150 HPS Street Synthetic Motor Oil 5W30 Pack of 6 Quarts

Great oil. Way better than others at the same price point

I've been using Royal purple HPS in all of my performance and luxury cars. At well over 180k for mileage, the engines look like brand new under the valve covers and intakes. My cars run clean and smooth year after year. No other oil products have worked nearly as well. Don't buy the off the shelf Royal Purple. Get HPS

I worked for Cadillac in sales for around 30 years and when my engine needed some work the cost of the repair was higher than a brand new crate engine from Cadillac with a 100K warranty, no brainier right? The mechanic who installed it is a master mechanic with Cadillac who also races cars and builds high performance engines for other people. On his recommendation I used this product and will continue to do so. My second vehicle is nearing 255k miles without oil usage in 5000 mile oil changes. I maintain my cars and it definitely costs less in the long run. A truck like mine today would be $100,000. It was $66,000 in 2005.

I’ve used this oil for 11 years now in 2 mustangs and now an explorer ST with The extra compression from the twin turbo it’s nice to have a good quality oil and supposedly this one does better under high heat, which is why I use it over their regular oil

Been using this oil for years in many of my motors and it is awesome oil.

I originally started using ROYAL PURPLE about 10 years ago when I wanted THE BEST synthetic oil possible to protect my vehicle for our Florida trip. I beat the vehicle hardcore for 26 hours driving. I made it their and back home safe. It is recommended that you do the first oil change at 3K to remove all existing sludge prior to going the full 6-12K interval or 12 months. Any engine or small engine I own gets ROYAL PURPLE!!!!!!

I contacted Royal Purple and one of their sales representatives said this is exactly what I need for my 1998 Jeep 5-speed manual AX-15 transmission. I know already that it will shift much better in cold weather. Glad I asked! Maybe this will be of help to another Jeep owner.

I use this in both of my Jeep Wranglers. While a little expensive, so are engines and this oil is fantastic. I highly recommend.