Well here is the story. Yesterday after fueling up I added 8oz. Of power service to a full tank since it was to be single digits last night. This morning I started the truck with no symptoms of anything wrong let it warm up about 5-10 mins jumped in and started to back up and noticed a cloud of white smoke. Just to make sure I went down the street and every time I touched the throttle I got a small puff of white. Do you guys think its an injector? Could the power service have cause this? 
