Hey guy's it's been awhile with all the work and the new Harley ,but back to the subject at hand. When I start my truck it blows out white smoke and has a pretty good size black ring around the end of the ex. pipe,well I figured I better check the oil and it was fine,I've also been having trouble with a hesitation while shifting up to other gears,actually pretty bad. Is any one else having this problem ,or had this problem so I can tell the dealer.