Actually I am using 10w-30 fully synthetic (Napa house brand, it's cheaper and made by valvoline). The oil psi is as follows: up to 80psi on cold start, drops to between 50-60 psi at idle after fully warmed up (30 to 45 minutes of driving) but while driving after warm up it runs at about 60-70 psi. Oil filters used - k&n (to expensive but I really like the one inch nut for removing filter), Napa gold (seemed to make oil pressure higher), and Mopar filter seems to be doing o.K. But no significant drop in oil pressure.
Saturday, November 29th, 2008 AT 7:31 PM