DaimlerChrysler will be allowing commercial, government, and military users of diesel 2007 Dodge Rams to use up to 20% biodiesel (B20) in that vehicle's Cummins engine, if the fuel meets applicable military specifications. If you're a private owner of a Cummins Ram and want to run biodiesel without running into warranty problems, you're still out of luck for the time being - the company is still working on a national spec for B20 that would allow it to be run in all diesel Rams.
This is said to tie into DaimlerChrysler's new "green" marketing approach to diesels, which includes the BlueTec package of emission-reduction technologies.

[Source: Dodge]

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