It's a good true synthetic oil. So are Redline, Motul, Idemitsu and Amsoil. There will be people with favorites and argue until they're blue in the face for their product, but in general, they're all good at keeping your engine lubricated.
I've actually seen a couple of tests where horsepower increased in an engine using RP over other brands, but by such a small amount that you'd never notice it, and any change your fuel economy change won't be noticeable either.
In short, most of these synthetics are good oils for any car but you'd probably never notice any difference between them. By the way, I use RP in my Boxster.
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