truck has 2000 miles and has been great but today im on the interstate with cruise at 78 and hear what sounded like another diesel but it was me. i pressed the throttle and it felt like i cut out and sputtered for about a second with a decent size cloud of grey and black smoke comming out of the exaust then it cleaned up and quited down. then it happened again in the next 10 or so miles. engine temp was about 180-190 oil press was 60 and trans 150. i pulled over and nothing seemed out of the ordinary and it ran fine the rest of the way ( about another 30 miles). it seemed like my 2 stroke outboard does when it runs at low rpms for a while and loads up then i get on it and it smokes and sputters for a bit till it cleans up. sorry this was so long just to ask why?