Ram 2500 Heavy Duty Crew Cab
Ram manufactures its bi-fuel pickup in its own plant in Mexico. It includes a gas-prepped 5.7-liter Hemi V-8 that uses gasoline for start-up, then switches to CNG until the CNG tank is empty. The CNG tank, in a cabinet behind the cab, holds 18.2 GGEs and the gasoline tank, on the frame beneath the bed, is 8 gals. CNG-only range is 255 miles and the backup gasoline supply extends that to 367 miles.