2015 t-680 info / opinion needed

Our 2015s have the PACCAR engines, and they've been in for updates and such, which the MHC Kenworth rep handles, as they're all still warrantied.. couple seals in the windshields had to be replaced, and the wheel seal issues so far seem to be more of a thing on the 2014 models, but we'll see what happens when these trucks hit the 120 - 150k mark (which is typically when it happened on the 2014s). The biggest issues I've seen with our 2015s is that stupid "Wingman" system (which I believe is optional).

 

Yeah that's about the only real problem I've had with mine(2015)..I've put 92K on it.
Wingman POS is for the birds.
Has 485hp Paccar w/13speed and 3:36 rears..does the job with no problems.

 

We've got a 13 T680, Cummins ISX 525, 13 speed, 22.5 with the factory size low pros. We've seen as high as 8mpg, although average is about 6-7

edit- almost forgot, 3.42 rears

 

Haul production video road cases for concerts, sporting events, etc. We rarely have over 30k in the wagon.