krobbe wrote:
Buy a diesel for tow power. Not to save money.
Yup.
My diesel Jeep does get about 30% farther on a gallon than the gas engine version. It also puts out about 1/3 more torque (335 ft-lbs vs 210 ft-lbs). During the summer when gas prices go up and diesel prices level off or go down (although that not so much lately), it is cheaper to drive than the gas version. But it is the 1/3 more torque that makes it a good tow vehicle.
Of course, a truck maker could (and it appears they ARE these days) use up that improved mileage by stuffing in an even stronger puller.