Yesterday I took my car out for a ride, and I checked the oil level first; it was just below the 1/2 mark (original 1947 dipstick), so i thought it was 1/2 quart low, no big deal. I take the car out, and notice that the oil pressure drops in right hand turns; not good, as it surely means that the oil is moving away from the pickup. So I come back to my garage, add 1/2 quart, and check the dipstick, which is now just over the 1/2 mark. Add the other 1/2 quart, and it moves a little higher up the stick. Add another quart, and it is almost up to the full mark???
So it seems that the 1/2 mark clearly isn't in quarts. Is it in gallons, maybe?? Or could it be 1/2 of the total capacity, meaning 2-1/2 quarts?
Anyone know for sure?
Marty