This is my third Ecodiesel. 2017 Laramie Longhorn. Recently traded in my 2016 with 87000kms. Loved the truck. No issues whatsoever. Fuel economy was as good as 37 mpg. Or 6.8 l/100. I live in western Canada and it gets cold out. I use the winterfront from November to March to aid in warmups. I use no fuel conditioner or additives. My trucks just work very well. Also had a 2014 with minor issues with the DEF the first winter.