[majek5]

Along with a decrease in fuel mileage, power, ect, could that also lead to higher egt's when towing? While talking to a couple of fellow diesel owners, they said that could be part of the problem. I still have 3/8 tank of winter fuel in one of my tanks (I don't drive the truck much in the winter).

[cleatus12r]

I've run into that while towing.

There is less energy in the winter blends so you need more fuel for a given amount of powahhhhh.