Suburban Diesel Fuel Mileage Test

$1k upcharge for the diesel on the Suburban is the lowest of any diesel in the US market today. I bet that option costs more in a few years. Also, resale and the driving experience of the diesel is different than the 5.3L. 4WD EPA estimates are 20mpg city, 26mpg highway. That's almost exactly the same as my Subaru Outback at 20/27. I cannot imaging getting 22mpg in a full sized SUV as a daily driver.

I had a diesel(gate) Passat. No mathematical analysis could justify the upcharge in that car. But I loved driving it for 80k miles which was better than almost every mid size 6-cyl car I had before (and my current Outback 3.6)..