max1

iTrader: (12)

55 at iddle - 80psi at WOT - high flowing oil pump..

tsduke03

Man, after driving my mom's 01 Yukon again and getting it hot it definatly runs higher psi than my truck. 40-41 idle and 54-55 running 65mph. I did notice it had 10w-30 oil in it, but that should be any different that 5w-30 at full temp.

schino

iTrader: (14)

my new 4.8 seems to run at 40psi all the time. 50 at cold start but once warmed it doesnt really move from 40 at all. idle, driving, wot.... seems weird