The City of Ontario, CA, plans to buy 24 refuse trucks powered by natural gas engines and hopes to have over half of its waste-truck fleet operating on natural gas by the end of next year.

The city is buying 24 Autocar Xpeditor trucks equipped with the 280 hp C Gas Plus natural gas engine produced by Cummins Westport. Nine are scheduled for delivery before the end of the year.

The trucks will complement eight with low-emissions C Gas Plus engines that have already been in service with the city since May. By the end of the summer of 2003, 32 of the city's 58 refuse vehicles will be powered by natural gas.