Hi Dave, we just brought our 2003 Nissan X Trail 2.2 di only had it for a week, so far been please with it, Fill the tank up with diesel and done 200 miles and the fuel gauge is between 1/2 and 3/4 full, Think I am getting 40 plus to the gallon, but I spoken to other member who had X Trail they said 30 to 33 towing, depent on how heavy the van is? So we can't wait to tow with it on Friday, Happy Caravaning, Trevor