Originally Posted by tallbump
Well, it certainly won't be abused. What oil should I run? It gets pretty cold here, below zero sometimes.
Check the accuracy of your pressure gauge first. If it is accurate, and you are running 5W-30, you could just thicken up a bit to 10W-30 and see what that does to the pressure. If you are over 100K mi, 10W-30 is a good idea anyway. If the mechanical gauge reads higher than your dash gauge, try a new sender.
We had three weeks here at 42.04 N latitude (10 minutes * of you) under 32F and many mornings well below zero. Our '95 with Shell 15W-40 started every time parked in the street with no auxiliary heat. We're coming into March now, and things are beginning to warm up, so maybe we've seen the last of the -10F mornings.
Here'* something to consider. Mercedes Benz says that you need a minimum of 7psi oil pressure for every 1000 rpm. My '95 FSM for the Bonneville says oil pressure should be 60 psi at 1850 rpm with 10W-30 at normal operating temperature.