German Castrol question.....(PICS INSIDE)
And I switched to PP Xw30 (whatever weight it was) at my last oil change, and while I read BITOG and I KNOW it's getting great UOA results, I'm getting increased oil consumption and WAY louder piston slap on startup. Anybody else noticed this?
I liked the GC alot for the LS1. My next oil change will be back to GC or to the Turbo Diesel M1. I have tons of Pennzoil Platinum, and will save it for the daily drivers.
My car used to idle a 40psi. Now it is anywhere from 55psi to 60 psi at idle.
Seriously, just because oil pressure is high doesn't mean you're getting better protection. It could mean you have a restriction. That's like saying the thicker the oil the better it protects. That's just silly.
Read this. It's a little old, but the info is still pertinent.
http://people.msoe.edu/~yoderw/oilfi...lterstudy.html
The Best V8 Stories One Small Block at Time
If 10psi per 1k rpm is the rule of thumb, why do people get ported and shimmed oil pumps to raise their oil pressure?

But you are right about the WIX, everyone raves about them too.
The thing I dont get is how you know for sure 100% that the increased pressure is from restriction?
Did you even take the brand new oil into consideration?
Im just asking a question.
Thin oil will be less "restrictive" causeing lower oil pressure correct?
Did you even take the brand new oil into consideration?
And you're the one that said going to a K&N filter gave you increased oil pressure, as if that's a good thing.


