Excellent fuel economy.
It’s a good thing too to make up for the crazy-high cost of diesel. I’m on a road trip and have been filling gas at just under $3 so far ($2.89 best), but diesel has been advertised close to $5 ($4.69 to $4.89 seems typical).
I don’t know what’s going on, but for first time in my lifetime it may cost more to fuel same vehicle with diesel.