So install a sandwich adapter plate, and get a separate gauge? With a 'real gauge' I'm not sure what numbers to look for, or what to do next? Am I trying to diagnose a bad oil pump? I've been watching the stock gauge. When I start the truck ,the gauge goes from 0 to about 55% .But after that the gauge doesn't move when I let off gas or punch it... just stays at that 55% setting . I know I should see a drop at deceleration and move up w/ acceleration. One other question should I use something like Marvel mystery oil to 'desludge'.
Thanks
<center> <table><tbody><tr><td style="text-align:centervertical-align:top;" width="">
</td></tr></tbody></table>
</center>