Quote:
Originally Posted by wemooz
I had been running 20W 50 oil in my car, and neglected to mention this when I had the oil changed. I suspect that I got 20W 30 or some other lower viscosity and now my oil pressure is lower. What should it be? Bill |
You will get a lot of different answers to that question, and it will also depend on the tolerances to which your engine was built, your oil pump, etc. But, with that said, if you can muster 10 lbs. of pressure per 1000 RPM you will generally be ok. Your idle pressure is not terribly important. My FE, when nice and hot, will idle in the upper teens, but the pressure comes instantly up when I touch the throttle. From the factory, FEs dropping to under 10 lbs. at idle were not uncommon, and the oil light came on around 6 lbs. From the 1965 Ford manual...
