I need some help here. I have an 05 Sprinter 3 mo. old just turned 36,000 miles. It has run well, Dodge replaced one heat sensor at 20,000 other than that problem free. At 30,000 it started smoking after i've idled for a over a couple of hours, a lattle smoke at an idle, fills the expressway lane behind me at highway speed for a mile or so then the condition clears up. No loss of power or other problems. Dodge tells me this is normal. I do not have the high idle option but do idle up with an idle stick. This thing smokes so much I'm sure I'll be pulled over on it one day, anyone else have this condition,? Any thoughts?