How much does a gallon of diesel fuel cost per mile?

Diesel fuel mileage is typically expressed as miles per gallon (mpg). This is the number of miles that a vehicle can travel per gallon of diesel fuel. The actual mpg for a particular vehicle will depend on a number of factors, including the type of vehicle, the engine size, the driving conditions, and the use of air conditioning or other accessories.

Diesel fuel typically costs more per gallon than gasoline, but it also has a higher energy density, so you can travel more miles per gallon. On average, a gallon of diesel fuel costs around $4, and a vehicle with an average fuel economy of 30 mpg will travel approximately 120 miles on one gallon of fuel.

Therefore, the cost of diesel fuel per mile is approximately $4 / 120 miles = $0.0333 per mile.