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Volvo trucks has announced new field tests of bi-fuel methane-diesel engines in partnership with seven different Swedish companies, adding a new technology to the brand's at-fuel tests with DME and hybrid engines. The new engines, which are based on the Euro-V compliant 7-liter model, reduce fuel consumption by 25 percent compared to standard diesels thanks to methane's lean combustion. The system still uses a small amount of diesel fuel which is injected and ignited by the compression, which in

While it seems General Motor's been stomping all over its domestic rival Ford Motor Co. on the biodiesel issue, apparently that's because Blue Oval's just been keeping its alternative fuel cards close to its...er...hood. Volvo, one of Ford's Premier Automotive Group, has developed models that can be equipped to use either the biofuel E85 or bi-fuel, which is a combination of gasoline and methane. Currently, the Volvo S40 and the V50 can run on E85. Both are sold in Sweden where the fuel is more