871 oil mixing with fuel

[joed2323]

The crankcase breather does have the maintenance free one installed, so that rules that out.

I guess the smart thing to do would be to test the fuel like rawze suggests.

Let's just say the fuel is contaminated with algea or asphaltene buildup, would this result in high smoke output due to long term exposure? I guess if it contaminated the fuel system(fuel injectors) it would tend to smoke.

Kenworth swears up and down that it ran numerous fuel system tests and everything checked out OK, their words were (runs great)

I will have my buddy send in a fuel sample analysis and I guess start their first, and move down the line...