As of 2012, NACE reported that mechanical engineers with a master's degree started at an average of $75,700 -- significantly more than the average starting salary of $61,300 reported by mechanical engineers with a bachelor's degree.
How many gallons does a semi truck hold? Quick Answer. Semi truck fuel tanks vary in size, but they hold an average of 125 to 300 gallons of fuel. There is a fuel tank located on each side of the tractor, and fuel is distributed between the two tanks to balance weight.
How much fuel does the trucking industry consume? The trucking industry accounts for 12.8% of all the fuel purchased in the U.S. Compared to automobiles and light vehicles accounted for 63% of the fuel purchased.