Will a 10 mile commute kill a diesel?

Oilslick wrote:
While the Cummins engine is in "regen" there is no direct indication other than the fuel burn drastically reduced, if you have an EGT gauge you will see the increased exhaust temps displayed there. During regen exhaust gas is recirculated back into the intake just before the grid heater, if the engine is not at operating temp during regen that recirculated exhaust gas also contains unburnt diesel fuel which eventually runs down the cylinder walls and dilutes the oil causing the engine to "make oil" this unburnt fuel also runs back down the boost tube and collects at the exit to the precooler. Anyone start to see any problem yet?

True there is no direct indication but I would think you should see a big drop in the mileage indication while the regen is taking place. My truck has never made oil either and I sometimes have to add a liter between changes.

It's been a long time since I lived in Edmonton but I remember how cold it used to get and I'll certainly take your word on the rest.