And paying $0.75 more per gallon of diesel over regular gas doesn’t help, either.
The Denver area is about $0.45 over gas, but your point is well taken.
Toss in the Urea that has to be added. About 8-10 gallons per 10,000 miles at about a $100 cost.
Diesel has to give about 15% more mileage to overcome the expense.
Of course, diesel engines cost more, too, so they really haven’t taken off due to economic reasons.