Bought a 1964 john deere 4020 lp for a chore tractor. The idiot light didn't work so installed a oil pressure gauage. The tractor runs 28 psi at idle and 35 at 1800 rpm. The pressure stays around the same hot or cold. To me it just seems low but I don't know a lot about 4020s. The tractor runs great and don't knock or use oil just thought I would see if anyone knows if thats about normal. Thanks.
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