Houston Remodeler wrote:
It took a bit of a leap for me to buy a diesel. When not towing the RV, the pickup is my daily work truck. Most days we pull a small trailer of some sort. When not towing the new truck gets 24-28 mpg highway at 70 mph. City driving is 16-18. Towing the RV is 12-14, but not all RVs are the same weight or wind resistance.
Just thought I'd throw that out there....
My experience so far is 16.5-17 city (suburban more than urban) and 21-22 highway/freeway mix. Highway alone may beat that a bit but I doubt I'd see more than a marginal improvement. I haven't had it long enough to figure towing mileage yet. I think your numbers are not too realistic for most people. Maybe if you're super frugal and always driving in ideal circumstances? They just seem high.
I debated gas too but to me the diesel was more cost efficient and frankly just better suited to a heavy truck IMHO. Heavy gas in town I would expect maybe 12 with about 18 highway under good circumstances. That was just a little too low for what I wanted.