Has anyone seen this problem? So I was driving to work this morning and the check gauges light came on and I looked at the oil pressure and it was reading 0. So I pulled over and shut the engine off. When I restarted it everything was fine for about ten minutes, then the oil pressure would drop to 0, then a few seconds later go to about 75-80, then back to 0. I again pulled over and shut the engine off. When I went to restart it I noticed that without the engine running it was reading 40-50 psi on the gauge (I do not have a pre-lube set up), then when the truck was started it rose to 100 psi. I have the bypass filter system installed and the next time it read 0 I took the oil cap off and oil was flowing at the normal rate returning to the engine. Any suggestions are appreciated.