Enterprise Holdings to use biodiesel in airport fleets

US-based Enterprise Holdings, which compromises Enterprise Rent-a-Car, National Car Rental and Alamo Rent-a-Car, is set to convert its fleet to biodiesel operations.

EH has already made the switch in more than 50 North American markets, focusing firstly on airport shuttle buses that are working within a five-mail radius of a biodiesel fuelling station.

At time of writing about 70% of EH’s airport shuttle fleet now runs on biodiesel, with 50% using five percent biodiesel (B5) and 20% using a B20 mix.

A spokesperson for EH believes that, by the end of 2012, around 80% of its shuttle fleet will be running on biodiesel, while a further investment into compressed natural gas will offer another alternative. Thirty EH buses are using the gas in Southern California, with another 10 coming online later in the year.