For the biggest engine that is in the truck it needs a bigger tank I would suggest 360 tank.
Paystar 5600 needs a bigger fuel tank
Get in line behind the M916 and other (mostly US) Trucks with a ridiculous penalty with enabled AWD.
Its a kind of joke, that the RU engines have more power and an inherent better fuel economy as the US ones, which gets ridiculous with manual AWD penalty.