Injectors: Front Vs. Rear

[Jeepsinker]

Negative, I have a G code pump. No Fdc.

 

[welldigger]

If you are making oil, then diesel fuel is leaking past the fuel density compensator. By-pass fuel density compensator.
MHassett

There are several places that can leak fuel into the engine oil. The fdc if you have one (my truck doesn't). The HH plunger. The HH o rings. The fuel control rod o ring. Also, the booster pump seal can fail.

 

[Jeepsinker]

Like I said, I've seen no evidence of fuel contamination yet. I do the paper test every time I check the oil.

 

[welldigger]

If you haven't noticed the actual level raising then it probably isn't leaking in. My oil level got 3 or 4 quarts higher than full twice. Once when I first got the truck and I didn't know any better and then after I changed the oil the first time I noticed it. Which prompted me to fix it.