AJ06GT

I didn't vote because I really don't think it makes THAT much of differnence. Whether you drive it WOT all the time or not makes a LOT more difference. I have RP in my car right now, but I don't think that there is really that much difference. If you get it from AM though, use the discount code and it's a decent price.

SmallFeesh

Royal Purple claims to only need to be changed like every 10k miles or so... but they say to replace the filter every 3k.... makes not alot of sense... I like knowing I have alot of protection when I miss a shift, grab the wrong gear, etc. etc. just peace of mind!

bumpinwheels95

if u havent used the oil yet i dont recomend it just stick with what you have, but i do recomend royal purple for tranny fluid and rear end fluid

newb2000GT

A local place by me makes a high-end synthetic to compete with the other synthetics and from the tests I have seen it is superior to all of them for the same price. Mobil1 scored better than RP but not Amsoil. I would not switch to RP and you should be good with Mobil1.

I put in 5w-20 at my last change.