Rick 12v CTD

hot idle with rotella 15-40 in my fresh motor was only about 35psi for me.

Additionally, I ran the series 3000 amsoil 5-30 in my truck year round (and had gone just about 30k miles on one oil change) before I pulled it apart. I rebuilt it because I figured new rings and bearings were a cheap assurance since I wanted to reseal it. When I opened it up, despite the 300k miles on the motor and 30k on the last oil change the bearings all looked new and the cylinder walls looked perfect as well.

Angry Johnny

Typically 10 psi of oil pressure per 1000 rpm's is all that is needed.

ofelas

Reason being an DRB-II shop unit; I'd have ballparked 700-800 if I didn't know better. Got to get a tach soon.

You decoded that signature line I see. This is a nice one, about 2000 original miles, foggy side windows, magnets don't stick to the front fenders etc etc

E.Roy

For reference, my truck on Rotella T6 5w-40 hot idles in summer at about 27=30psi, runs about 50psi hot at cruise. Cold start up is 75psi