25% better mpg from current diesels? Too good to be true?

Desert Captain wrote:
With diesel being about 25 percent higher in cost than regular gas where is the net savings?
Just saying/asking... :h

Depends on location. On the West Coast diesel is often cheaper than gas. Diesel engines last much longer, they get better mileage, they pull better, and they are worth a lot more when they age.

There are gross savings, net savings and fuel savings.