The 2012 Ram 2500 CNG is the first mass-market manifestation of Chrysler's commitment to natural gas. Like the bi-fuel Ford F-250s we recently drove, it is relatively transparent in its operation, ...

Ram pickup trucks like the 1500 and 2500 series used to have an EcoDiesel engine option — how did it compare to its 6.7-liter ...

Thanks to the recent fracking-based natural gas boom, the idea of using it as a vehicle fuel has been gaining more and more traction. One prominent backer of the idea is Chrysler CEO Sergio Marchionne ...