Royal Puple
That is what manufacturers are calling for a lot of times. Both my Avalanche and my wife's Scion transmissions call for Synthetic.
Aftermarket clutch type posis like the Eaton HD specifically warn not to use synth.
So blanket statements like yours are not valid. Each has to be case by case.
No, Royal Purple blows. Read the whole thread, then look on LS1tech. http://forums.corvetteforum.com/show...ghlight=AMSOIL
I run Redline Synthetic 10W40 with a WIX filter in my Vette. It's 9 bucks a quart, but consistently proven to be the best. And to the people bitching about the cost of oil... Do you change your oil every other day or something? If you change your oil every 2 or 3 months who gives a **** if a good quality oil change is $30 or $40 more?
TLewis is the owner of RevXtreme in Tampa, a respected LS1 builder.
I run Redline Synthetic 10W40 with a WIX filter in my Vette. It's 9 bucks a quart, but consistently proven to be the best. And to the people bitching about the cost of oil... Do you change your oil every other day or something? If you change your oil every 2 or 3 months who gives a **** if a good quality oil change is $30 or $40 more?
Hmmm Only bearing failures we saw in our race engines were w/RP. Reher Morrison says the only way you can use RP in a Pro Stock motor is to change it after every run. We have run M1 in our Alky drag motors for 7 years w/out issue, but have seen 2 failures w/RP.:cheers:
We have had good luck with M1, Lucas, Amsoil, but RP has resulted in engine failures that the only cause was lubrication failure. I don't care what any "tests" show, we run $18-22,000 Alky motors and compete all over the Eastern US in Top Dragster, Super-comp, & Super Pro....and have several close friends who run Pro-Stock (Dave Connolly, Jeg Coughlin, etc.) and aside from a few extra HP from the oil sheeting off the metal so fast, RP will not protect our 8,000 RPM race motors. In fact we will NOT warranty our performance builds if RP is used. We run our race motors at the ragged edge & we have to rely on good protection, RP does not. Anyone that wants to argue the point just put up $20k for one of our new race motors & we run one on M1 & one on RP, full load dyno runs and see which ones lasts. End of discussion.:cheers:
Last edited by Mike94ZLT1; Nov 12, 2007 at 03:06 PM.



