DEF Quick Facts - Consumption
Q: How can I determine how much DEF my truck will use/need?
A: The amount of DEF your truck will use is dependent on the size of the truck’s tank and dosing rate chosen by your automobile/truck manufacturer. DEF tanks range in size from approximately 6 gallons to 30 gallons.
Use our interactive Diesel Exhaust Fluid calculator for more accurate results.
Assumptions: *120,000 miles per year, 6MPG
** 2% DEF per gallon of diesel
top