A grant recipient when using money from a grant under the program shall prioritize:
(1) the purchase or lease of new motor vehicles, including new motor vehicles that are converted to operate on an alternative fuel, when replacing vehicles or adding vehicles to the fleet;
(2) the purchase of new motor vehicles, including new motor vehicles that are converted to operate on an alternative fuel, to replace vehicles that have the highest total mileage and do not use an alternative fuel; and
(3) to the extent feasible, obtaining, whether by purchase, purchase and conversion, or lease, motor vehicles that use compressed natural gas, liquefied natural gas, or liquefied petroleum gas.