How does royal purple match up to mobile 1???

Im not going synthetic since I'm too lazy to run premix, plus synthetic has a tendency to build and cause problems w/ the seals.

But I hear royal purple is supposed to do wonders for our engines.

 

I can't say how it matches up...both seem to be very good...but I've been quite happy with the Royal Purple 10W30 I've been running. I'm not sure about your premix comment...you don't have to run premix, and I have to take exception to your other comment as well...I have seen no real data indicating any "build up" problems or seal issues.

I know, I am groaning inside too...and so it begins... :-)

jds

PS: Racing Beat claimed a small horsepower increase when they used the RP racing oil, but I can't honestly say I noticed that.