In Reply to: 8N Oil Pressure posted by Travis Webb on May 28, 2024 at 22:16:17:
Before connecting the new gauge, I would have started the engine briefly so all the accumulated sludge in the oil line can be flushed out.If the gauge still reads erratically, I would try another gauge. Your pressure is low, especially on a cold startup. I run 15w-40 in my 9N. It is a somewhat "tired" engine. My startup oil pressure is 40psi. After about a hard workout of mowing for 1.5-2 hours, my pressure falls to 15-20 psi hot.
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