Turbo Failure

[SnoKing]

I think if my truck struggled to tow the 16K trailer I might see more of a difference, it does not struggle! So towing in the same gear (5th gear) and speed there is very little difference. Getting into 6th with the little trailer as I noted, does improve mileage. We will be off to Arizona in 5 weeks, so another chance to test theories. Taking the higher elevation route down through the middle of Nevada.

Follow up, I on the trip down this fall with the 8k TT ran a little faster than the 5th gear 60 MPH with the 16K 5th wheel. I ran without TH so transmission would shift into 6th at 63-64 and a few areas at 65+ and mileage was better. So my theory that in the same gear at the same speed that load weight makes little difference in mileage seems to hold some water.