That depends on a number of factors, including...
You could typically expect, from any Class 8 truck, between four and eight MPG, dependent on these factors, with an average between five and seven MPG.
Between four and eight, depending on the gross weight, drivetrain, and speed you're driving at.
Better driving habits are usually the first place to start.
Between 13 miles per gallon and 16 miles per gallon.
16.5 miles per gallon
52.27 miles per gallon
5.8 miles per gallon
about 10 miles per gallon
About 21.4 miles per gallon. (300/14 = 21.4)
it can get 8 miles to the gallon
12 miles per gallon
8 miles per gallon
7 mpg 7 miles per gallon