I finally got to pull a boat with the new 2.8L Duramax and it exceeded my expectations. I towed a 20ft Champion from Plano to Texoma and back. There was no lag or bogging down the motor. I set the cruise control on 75 and it pulled great, never having to down shift or be placed in tow/haul mode.
If anyone else has any feed back or experience towing with the little Duramax, please share.