Detroit series 60 oil pressure question .

That’s normal, only time mine gets any higher, is when first fired up. Fresh oil, 50 lbs. till warm. Old oil, especially if a gallon or two low, cold start will be 47-48lbs. At high idle, till warm. I usually bump it up to 1000 at idle, then bump it down, a second at a time till the guage barely moves. Keeping about 36 or 37lbs. at about 800-850 RPMs. Looks like you’re at 43, 37.5, and 21 at idle. Idle pressure might be a little low. I’d have to check mine, Same engine fresh inframe. You probably noticed increments on guage is 12.5 lbs. not 10. Detroit’s oil pressure is lower than Cats, about 10lbs. If I recall correctly.

 

my dd3 runs 50 on the road per gauge and prolink

 

Maybe. They will even slobber oil sometimes through the Turbo and out exhaust stack at first. I didn’t notice any difference, I’ve got 25k on it now. Rings often don’t seal up good till about 70k. Fuel mileage should jump up as much as 1 mpg. It happens all at once sometimes. You’ll know when their seated in good by the MPGs. Run the overhead, sometime after 70k.

 

Drive it hard, making it work (Lug) a bit. Between 1350-1500. I’ve been doing that, and then occasionally running it up to 1700. I’ve ran it all the way up to 2100 quite a few times. If it’s ever coming apart, let it happen now. Lol. The harder the better, without tearing up the driveline. Lol. I just set the cruise, mostly, but been gassing on up hills, making it work hard. For now anyways. Opposite of my normal habits. It’s true, has something to do with side force of rings on cylinders. Lower RPMs are better at that. You want them seated up good, wearing into the sleeves, to get a good match in diameter. Opposite of just idling, or babying it. That will encourage glazing of cylinders, and increase blow by. Ideally more heat the better, within reason ofcourse. Don’t want to overheat it, or run over 1000 pyro egt. But definately run it hard. Temporary economy loss will payoff in increases in long run and less blow by, if broken in right. Should change oil soon, before 4K, to get all the metal shavings out, if any. I’ve read as soon as 2k, I waited till 6k. Too long. I changed it again at 16k. No more shavings. All 6 counterbores were cut, block cleaned good. Saw it with my own eyes. Even ran a magnet down each bore, and around the bottom. Still, here’s what I found on first oil change. YIKES!!! It’s normal.

 

I got a 12.7. rideandrepair has exactly the same numbers as me.

 

This is a load of garbage. How would it go up?

 

Did your oil pressure ever go up? Mine was running the same. I changed rods, mains, and cam bearings. Replaced oil pump and regulator. Ended up at 48 psi hot at 1500. Idle remained at 21 and 37.5 at 1000