Bluhorn wrote:
While that trailer was hooked up it never saw 8th gear. Mostly stayed in 6th. I have the 26 gallon tank and that really needs to be upgraded to the 33 gal optional tank to extend range. Thats about my only gripe with the truck.Without the trailer I can achieve 24-25 on the highway.
You shouldn't expect to use the top gear or 2. Not a gripe, 7th and 8th gear are for your bobtail mileage claim, which seems a bit optimistic. Or quite optimistic actually.
Although you did say "can achieve", not "gets." So makes sense you could coax some great mileage under just the right set of conditions.