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Re: Time for a new oil pressure thread
10 psi/1000 rpm is a good rule of thumb. The factory guage isn't calibrated to anything and is more a pass/fail indicator than a guage. If the needle moves off the rest, you have oil pressure. If not, the sender is bad, the guage is bad, or the motor is bad. A factory guage that fluctuates a lot is usually caused by a bad sender. To get an accurate reading pick up a mechanical guage and screw it on. It doesn't have to be an automotive guage, the guage and assorted fittings tool set from the parts store is all you need. They might even rent it to you for the afternoon.
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