I drive a 2013 Passat TDI with 60000 miles so I drive 30K a year. My daily commute is 30 miles mostly highway plus when I visit customers I often drive 200-300 in a day. Mostly interstate miles. I noticed last week that nearly everyday when I got home after the 30 mile commute that the car was in regen. Is this normal? Or maybe it is starting and not able to finish before my commute.