42 gallons
?
about 32
It depends on your gas mileage. If you get 30 mpg, you'll need 83 and 1/3 gallons. If you get 20 mpg, you'll need 125 gallons.
44 Gallons
B2500 with extended cab is 19.5 gallons The B2500 without extended cab is less - I think it is 14 gallons or so.
35 gallons
A 2015 Ram 2500 reg cab, 8.2 ft bed has a 32 US gallon fuel tank.
The total capacity is 35 gallons.
$746.46
Standard is 22 gallons.
26 or 35 gallons