valhalla360 wrote:
A lot depends on what you are pulling and how often you are pulling.
If it's a small 6000lb trailer and a couple thousand miles flatland towing per year, I wouldn't pay for diesel, it's not needed and you will never recoup the up front cost in fuel savings. Heck diesel is now typically more than gas per gallon, so you may get better MPG but not better MPD(ollar).
On the other hand, if you are looking at a 15,000lb 5er, lots of miles including towing regularly in the mountains, jumping up to a 1ton diesel, starts becoming much more appealing.
It's not as bad as the 1/2 ton trucks but there still is a fair amount of variability in the payload and towing specs for a 3/4 ton, so a blanket statement about 3/4 ton doesn't mean much unless you are way overkill for the trailer and any 3/4 ton will do.
One reason for going diesel is that as the world switches to electric vehicles, diesel will be one of the last types to disappear.