RLR69
Junior Member
I had a 2004 5.9 CTD for years and it was all about speed. We were hauling a box trailer (about 10,000 lbs) and my dad was driving and he was running about 80-85 mph out here in in TX. I told him "you are going to kill my mileage", he was like "it wont make that big of a difference". We stopped and filled up.... mileage? About 8.5 mpg.
I started driving, set cruise at 63 mph and got just over 17 mpg.
My point is that speed and headwinds are what kill mpg's in trucks with a trailer. Find the sweet spot for your truck and make a choice... speed or mpg.
I started driving, set cruise at 63 mph and got just over 17 mpg.
My point is that speed and headwinds are what kill mpg's in trucks with a trailer. Find the sweet spot for your truck and make a choice... speed or mpg.