George Alta 5pts I test drove the new RAM 1500 diesel this week and was quite impressed especially the potential for 28 mpg highway. That's twice the mileage my son-in-law is getting on his F-250 diesel. The premium cost and likelihood that they won't be cutting any deals on this engine option for quite some time was the only thing that held me back from making a purchase right then and there. With the upcoming 2016 Chevy Colorado diesel and possible Nissan and Toyota with the 5.0 liter Cummins, I am just waiting for the right time to take the plunge. Now that the competition is heating up, I am finally optimistic we will see a new heyday of diesel trucks. For that reason, I hope the RAM 1500 diesel sells well enough to encourage others to join the fray which will be a win-win for potential buyers.