Quote:
Originally Posted by WHN
Does the oil pressure drop after the engine warms up?
With 20w-50 oil, our oil pressure gage starts out pegged, than drops to 3 to 5 psi after warm up. At idle, warmed up, gage reads 1 to 2 psi. This is in the summer. Car is sleeping now.
Enjoy.
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I run twenty w fifty motor oil in my model A engines and they operate exactly the same as you describe .