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Wade_Owens · 10-24-2012, 01:53 PM

I had the same, grey sludge with the RP 5w20, both the reg and XPR, didnt matter. It never would "mix" back in. When we first built the car and were hammering on the engine, we had it out often and found the same thing everytime. I would clean in out completely and find it again the next time.

Good discussion guys, what have some of the rest of you found?

I know the Gibbs is common in SS, any lifter pump up issues with the thinner weights in Stock?

Wade

10-24-2012, 01:53 PM	#30
Wade_Owens Senior Member Join Date: Jul 2007 Posts: 578 Likes: 0 Liked 3 Times in 1 Post	Re: What Race Oil do you trust? I had the same, grey sludge with the RP 5w20, both the reg and XPR, didnt matter. It never would "mix" back in. When we first built the car and were hammering on the engine, we had it out often and found the same thing everytime. I would clean in out completely and find it again the next time. Good discussion guys, what have some of the rest of you found? I know the Gibbs is common in SS, any lifter pump up issues with the thinner weights in Stock? Wade