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New 2011 Ford F-Series Super Duty Improves Fuel Economy Up to 25% with New Diesel and 15% With New Gasoline Powertrains; New Transmission Plays Key Role in Improved Economy

Green Car Congress

These molecules are atomized and vaporized, then enter a mixer that resembles a corkscrew. Tags: Diesel Engines Fuel Efficiency Transmissions. Before the exhaust gas enters the SCR chamber, it is dosed with DEF, an aqueous solution that is approximately 67.5% water and 32.5% When heated, the DEF splits into ammonia and carbon dioxide.