Ok sorry I had to go to school tonight!!!! Well the truck has two 100 gallon tankes which equales for all of you math people.... 200 gallons!!! We go through that in about 3 days it all depends our avarage mpg is 4.5 due to all the time the truck is sitting still and running at high rpm's. As far as go crazy about prices, well I get all my fuel at pacific pride locations they do not have prices at the pump so I have no clue what I am paying. The bill goes directly to my bookkeeper and then I get a monthly report with all costs from the past month so I only see combined totals for the month which includes my jeep, the truck, and equipment fuel.