Hello, I'm trying to decide which maintenance schedule I should follow between regular/severe, maybe someone can help me out. I live in a small city and rarely encounter stop and go traffic. My wife uses the car for an hour commute (one way) twice a week and I drive it to work and back 3 times a week (10mi round trip) and also for trips around town like the grocery store. So, I would say that *most* of the time would fall under normal conditions, however I do live in SW Michigan and temperatures are currently 30-40 degrees F and come January I'm sure we'll have some sub zero temps. I don't want to be wasteful and follow the severe maintenance schedule if I don't need to so I'm hoping someone more knowledgeable can shed some light? Could I follow the regular maintenance schedule and just get oil changes every 3k mi during the winter and 7k during the warmer months? Any input would be appreciated.