Recent content by TorqueExpert

It’s the nature of diesel. If you’re worried, just open it up on the highway and keep EGTs high—it helps burn some of that stuff off.

I’m getting the "Regen Required" light way too often lately on my '08 LMM. I’ve heard about commercial DPF baking services, but does it actually restore performance, or is the core just permanently degraded after 150k miles? Has anyone tried the liquid cleaners, or is that just snake oil?