Fuel Economy What is the added fuel economy from DEF?
It is estimated that DEF will improve fuel economy by 4%.
Example - Heavy Duty Truck traveling 120,000 miles annually at 7 mpg will purchase 17,143 gallons of fuel.
- DEF improves the fuel economy to 7.28 mpg
- Reduce annual fuel consumption by 659 gallons
- Fuel Consumption decreases from 17,143 gal to 16,484 gal
- DEF consumption = 330 gallons per year
Cost Savings - Average Diesel Price $3.00/gallon - Average DEF Cost $3.99/gallon
- Fuel Economy savings = $1,977
- DEF cost $3.99/g * 330 gallons = $1,316
- Net FUEL SAVINGS = $661 per year per truck
DEF cost per gallon based on estimated end-user costs
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