2017 GMC/Chevy DEF tank!

Go up over a curb, the front suspension will clear that way. Move forward 2 more feet and you're buying a new DEF tank. Did that once on a former 2005 F250 diesel, tweaked the left running board and they sit a lot higher than that DEF tank.

The guy that designed this must have gone to the same community college as the guy who designed the 2017 Fiat/Ram front grill.