Oil consumption

[Rawze]

Many people I know who own ISX's will say they will use no oil for about the first 12-14k miles after an oil change, then loose a gallon as the oil starts needing replacing. It is quite common.

I know that mine is this way too and always has been. It was like this even when it was brand new, and the same way after it got its inframe. As the oil wears out, it starts consuming a bit of it.

It could be that yours is getting excess soot in it and wearing out the oil due to the same issues making the DPF problems. - DPF's don't clog up unless there is something in the engine causing excess soot to cause it.

For the life of me, I don't know why someone would pull the head of an engine without it needing a replacement or some other very serious problem. Some of what you say makes no sense.

Lastly, a Stealershit is the WORST place to take you truck to for those kinds of problems!. All you get is one of these...