Why does my oil pressure gauge drop?
Why does my oil pressure gauge drop? The oil needs changing: Over time, oil breaks down and loses some of its viscosity, causing a low reading on the oil pressure gauge. Worn bearings sometimes cause the oil pressure to show a low reading. The mechanic will change the bearings if needed. A broken oil pump may cause a low oil pressure reading. What causes an oil pressure gauge to be low? Other causes of a high or low oil pressure gauge reading. Worn bearings sometimes cause the oil pressure to show a low reading. The mechanic will change the bearings...