Re: DEF Fluid is this any good
If you have DEF, you will see a second fuel cap next to the Diesel one.
I am sure a MY14 owner will chime in and confirm.
As for why some cars run DEF and some do not, the Californian Emission laws is the main reason. They are really stupidly strict.
Previous Ride = 2011 JGC CRD Overland
Current Ride = 2014 Silver JGC SRT
with Pano, HK and Spider monkeys.
Mods = CLSTech Ribbon Mod
Best 1/4 13.4@102Mph