“It occurred to us that we’ve yet to run a test with Royal Purple® oil that didn’t result in a power gain – it might be a marginal gain (as with our little Acura Integra), but it’s a gain.

We’ve also torn down some of our dyno engines that have been seriously abused, but with Royal “P” in the pan, the bearings have looked new.

So consider this an approval of the company’s line of synthetic lubricants with Synerlec. We also like the spray lubricant (MaxFilm), and while we can’t document any improvements thanks to the synthetic wheel-bearing grease, it makes us feel like we’re doing the right thing when we pack bearings with that stuff, too.”