2014 Ram 1500 EcoDiesel Long-Term Update: Adding Diesel Exhaust Fluid - Kelley Blue Book
Even in heavy Southern California traffic, the Ram has so far averaged around 21-22 mpg, and one highway-heavy road trip even netted nearly 30 mpg. Part of the reason that modern diesels run so cleanly is due to a urea-injection system that keeps the exhaust free of soot and odors. Of course, this fluid needs to be refilled occasionally, and with the miles quickly piling up, it wasn't long before warnings began flashing on the Ram's information screen that in 500 miles it wouldn't start unless the DEF was refilled. When that estimate went down to 480 miles in far less than 20 miles, we decided it was time to refill the DEF tank. Ram has thoughtfully put the refill for the tank adjacent to the fuel filler itself, with a blue cap marked "DEF/AdBlue. " We twisted off the cap, inserted a funnel, and started pouring in the DEF, a bit surprised that it was clear, despite the blue cap, the "BlueDEF" name, and all the other blue associated with the fluid. One gallon barely moved the DEF indicator needle on the dash, and we eventually added about 7. 5 gallons in total before the DEF started to bubble out of the filler neck. Source: www.kbb.com
