I have a slight oil leak. It only leaks after parking. I think it is the oil pan seal. I usually put a quart in around 3k miles. I can go get the idle readings in a little bit. The truck doesn't run bad or anything, but I feel like it should have more power than it does.
The only issue I do have is after the truck has set for more than a couple of days, it gets harder to start. Once it does start, I have to stay on the throttle for a few seconds to keep it running, then put on the high idle for a little while. Once on the road, it lacks power under 2000rpm for a minute so. It will rev slow, then around 2000 the turbo lights and it pulls hard. The power issue is worse when it is cold outside, so maybe glow plugs. I know the relay is good, though, since I just replaced it last year.
Seems to me that the HPOP system leaks down after time and takes a little while to prime back up, but that is purely a guess. Also, no oil in the valley what so ever. It is hard to see where my leak starts but it it oily all around the motor. More so in the back all around the flywheel cover.