Diesel Towing MPG With Ultralight Trailer

mtofell1 wrote:

Grodyman wrote:
It gets 7-9 mpg towing an untralight 4500lb trailer

I'm sensing a litte, "cooking the books" here. I get 9 with a less efficient gas engine pulling an 11,000# 5th wheel out west in the hills. Your Ecoboost has to do better than 7-9 with a 4500# trailer.

It sounds like the diesel will make more sense for range between fuel stops but the money saved on fuel alone will never pencil out in any reasonable amount of time.

Likely the difference in speed and driving habits.
If you get 9mpg with a gasser pulling a 11k 5ver, you are the figurative turtle on the road.
However if a guy is clipping across the country at 75 mph in a eco with a full size TT 7mpg is not at all out of line.

I can get 20+ mpg in my Dodge diesel putzing around N WI empty not in a hurry or a personal worst record of 9 mpg only pulling a 3klb cargo trailer ( 80mph westbound into a nasty headwind for hundreds of miles will do that).
Anything that burns unleaded I figure 8mpg one I hook any decent size trailer to it.
I can’t sit in the truck lane crawling along at 55-60 mph though unless the truck or the load won’t accept faster speeds.