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Reviews (7)

Feb 10, 2016
Liquid power !!!!!
1 of 1 found this helpful This is some good S%&T !! I own a 08 TB SS slightly modified and always use RP and decided to try Royal Purple HPS. My motor runs smoother , quieter and pics up RPMs faster. Love this stuff and going to try the HMX next because my milege is about 100,000. Be sure to get the RP oil filter its a must have.

Apr 04, 2017
Great buy.
Good product good price.

Mar 08, 2016
Just better !
3 of 3 found this helpful I've tried just about all the high mileage oil out there ,and most are pretty good . HMX by RP is just better motor runs smoother, quitter and after several thousand miles it seems just not as burnt . I will continue to use this product .