[Rich807]

Anyone seen diesel getting into the crankcase on these motors? I've done a couple of searches on the forum but nothing is popping up for me.

ETA: I've seen an issue where 2x now in as many years where I believe my oil level has risen after prolonged higher speed highway driving (at least as best as I can tell).

Did oil analysis after last episode of high oil level appeared & the O/A confirmed fuel dilution. Nothing that degraded the viscosity enough to compromise the engine (according to the lab), but definitely enough to validate why the capacity had risen to an extra half to 1-quart of fluid in the crankcase.

I don't let the car idle much, especially on cold starts. Wondering if I may have an injector issue or perhaps something within the DPF regen system that's dumping extra fuel at higher sustained speeds & it's ended up in the crankcase?