when i got my 87 GT i noticed the factory oil pressure gauge would go to about middle ways up upon startup and stay there...after hearing how innaccurate the factory gauges are i installed 3 aftermarket gauges in the dash a/c vent...now when i start the car it goes up to 50psi and after warmup it drops to about 40psi at idle...it never goes above 55psi or below 40psi no matter what the RPM's are at....is this normal?...if not what should i look for as far as fixing the problem?....these are mechanical gauges and not electrical BTW
Keith
Keith