Originally Posted by Cacciatore
Originally Posted by A_Harman
Cracked head?
Cracked cylinder wall? Bored .020" over plus pushing 1400 hp.
Lifting head during high boost operation?
Cylinder pressures far past design point is overstressing things.
High copper, high lead. Could be bearing problems.
14 ppm Iron per thousand miles is a pretty high wear rate. 3 ppm per thousand is considered OK.
And Iron wear rate has increased over the previous sample.
Did you cut open the filter to look for shiny Wheaties?
I think this is not a well engine.
This oil sample has about 60 WOT dyno pulls which may explain the high metal wear. It also got a new turbo halfway through the life of this oil. I did not cut open the filter. Power was also increased since the last sample which may explain the increased wear rate
Originally Posted by mattd
Are the turbo(s) water cooled on your set up? Are you running a single or compounds?
There are a few places it could be coming from. Putting water in instead of coolant isn't a solution. Find where the coolant is coming from. How much coolant do you have to keep adding?
Oil cooled single turbo. s476/96 1.32 AR. I will stick with coolant then. I dealt with some leaking thread in freeze plugs (leaking externally) over the winter but have not lost any coolant after that issue.
The truck did sit for about 8 months without being started over the 2019 summer. I suppose there are a number of factors that could be affecting this sample. Would the recommendation be a sample in another 3k miles with normal operation and see where it stands?
You still did not say how much coolant you're adding. I wouldn't drive it much without doing some digging. Pull the oil pan drain plug and pressure test the cooling system. If you see antifreeze run out, pull the oil pan and pressure test it again. Leaking freeze plugs are often a sign of another's problem, if they're not rotted.
If you can't do it yourself, pay someone to do it to protect your investment
Those coolers will flood the cooling system with oil when they fail, not the other way around FWIW. So as long as you don't have oil in the coolant I wouldn't suspect the cooler
I hope I am wrong, but my gut is telling me you might be have an issue with a block stress fracture near a water jacket.