In Reply to: Engine oil level posted by John in Mich on March 19, 2020 at 07:10:43:
Oil level should be checked with dipstick on a level surface with the engine cold, not hot, and not over the fill line. A slow gauge reading could be a worn engine -when was the last rebuild? The FORD NAA Owner's Manual states the oil pressure gauge should read, at the normal operating temperature, at least 40 PSI at 1500 RPM's and not less than 8 - 10 PSI at engine idle speeds, 450 RPM's. It also states the oil pressure gauge indicates oil pressure reaching the bearings but does not show the amount of oil in the crankcase. Oil in the crankcase can become dangerously low and still show pressure on the gauge. Engine oil capacity is 4 quarts with an additional quart added for filter absorption. Keep air cleaner and breather element clean too.