Suburban Diesel Fuel Mileage Test
TFL drove a Surburban with a Duramax diesel made ~27mpg with a range of 612 miles driving on fumes. Pretty impressive setup but again highway miles is where todays diesel emission diesels shine. L...
Forum Discussion
APT wrote:
$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)..
Why? My old 5.9L 12V 5-spd Cummins 3/4 Ton Dodge Reg Cab weighed 5400 lb curb and averaged 21.5 mpg with or without the boat in town or out. The only thing that would drop it was a high frontal area trailer. I wouldn't think the Suburban was that much heavier and they have had 25 years to offset the emissions rules losses and it runs a lot smaller engine and passenger tires.
