After excelling the needle goes back to normal once a consistent speed is met.
The oil pressure gauge jumps to the right pinned over the 80 mark.then goes back on 1992 Chevrolet 1500 Pickup
THESE GAUGES ARE ONLY ACCURATE TO LIKE 20% SO IT MIGHT BE OK. CK YOUR OIL PRESSURE WITH A MANUEL GAUGE AND COMPARE. THE GAUGE MIGHT BE GOING BAD
ok thanks for your reply.