had all of the "bullet proofing" done by a very reputable 6.0 mechanic 4,000 miles ago. Arp studs, head gaskets, oil cooler,high pressure oil dummy plugs, turbo feed line, turbo drain line, blue fuel spring, egr delete, and oil change. On the way home today notice "check gage" light on while at a stop light and oil pressure gauge is on 0! As soon as I give it throttle to move or in neutral the gauge jumps up to normal and stays there as long as Im not at idle. As soon as Im at idle there is no oil pressure! Please share your thoughts.