AUBURN HILLS, Mich. -- DaimlerChrysler will expand the use of biodiesel fuel by approving use of B20 in Dodge Ram pickup trucks effective with the 2007 model year. Initially, DaimlerChrysler is approving use of B20 in Dodge Ram pickups equipped with Cummins diesel engines for its military, government and commercial fleet customers only. The company is working with the government, automotive suppliers, energy providers, universities and independent agencies on a national fuel standard that would make B20 an option for all owners of Dodge Ram diesels. Biofuels reduce overall emissions of greenhouse gases and tailpipe emissions of particulates and smog-forming compounds, and supports the American agricultural economy. DaimlerChrysler has also announced plans to market vehicles this year equipped with BlueTec, a portfolio of emission technologies that will enable diesel vehicles to meet the toughest environmental standards.