Ford began production of the 2014 F-150 with the ability to run on compressed natural gas, making Ford the only manufacturer with an available CNG/LPG-capable half-ton pickup. When equipped with a bi-fuel CNG/LPG engine package, the 3.7-liter V6 F-150 is capable of achieving more than 750 miles on combined tanks of gasoline and CNG, depending on the tank sizes selected. The Ford F-150 with 3.7-liter V6 has an EPA-estimated rating of 23 mpg on the highway.