I'm getting ready to start it after sitting all night and with it being 30 degrees outside and do a datalog with the Autocal. I'll send it over to Blackbear and see if they've got any ideas before taking it to the dealer. It only does it first start up. I'm thinking it has something to do with the cold weather and maybe the E85....I made the mistake of putting it in drive the other day when it was acting up and the extra strain just made it die. My truck is overdue for an oil change, too