Oil pressure drops when I stop, goes back up when I start moving again. Does not need oil. Could it be the sensor and where is sensor located. It is a Jeep Grand Cherokee 6 cly. It is not 4 wheel drive. Could the Filter need changing? It is about 500 miles over due for oil change.
Normally if htis has had regular oil changes this doesn't happen. Have a manual oil pressure gauge put on it to see if it's doing the same thing it cold be a wire grounding out or sensor or even gauge.