First drive Ram 1500 diesel

otrfun wrote:
The gossip I'm hearing (nothing scientific) says the 2013-2014 Ram 2500/3500 6.7 trucks (with DEF) are getting about 1-2 mpg better fuel economy (empty) than their 2012 counterparts (without DEF).

Ref your comment about EPA testing, the EPA doesn't do fuel economy tests on vehicles with a GVWR of 8,500 lb. or higher. Unfortunately, the GVWR on nearly all 3/4 ton (and larger) trucks exceeds 8,500 lbs. Wish the EPA would include them. Certainly would make it easier to shop & compare new trucks from the Big 3.

Well I keep pretty close tabs on my truck's fuel economy.Here's my Fuelly link so you can see what mileage I'm getting unloaded and with what ratio of City vs. Highway. My best was an all highway run and a hair under 22mpg. I tend to get 18 to 19mpg's at 60/40 city/highway. I routinely break 20mpg going to the coast driving over the west hills (looking at the dash mpg's in this case), it's the slower in-town driving that kills my fuel economy. For once, my dash computer is actually pretty accurate at less than 4% off a majority of the time. DEF greatly reduces the use of EGR.