just curious if anybody is using 5w-40 rp. i am using it for the first time before the srt shootout in indianapolis. hey i need that edge. just looking for any users. of royal purple that is.
No - but it's one of the top two I'd like to try. The other is Torco Racing now has a 5W-40 full synthetic racing oil.
i have used it..... great stuff, but is it worth the extra dough??? not sure, maybe one of the experts can shed some light on why it is so good! i really would like to know the difference between RP and mobile 1.....
yeah, but i never like to read the stuff on the sites.....seems a bit biased...hahahahaha i like to hear stuff from real people with real life cars and driving situations!!!!