Calculate your fleet's DEF requirement
Modern SCR engines dose DEF at roughly 3 to 5% of diesel burned. Enter what you know and get a working estimate of consumption, storage and refill rhythm.
Highway tractors typically run 40,000 to 60,000 L; regional straight trucks 15,000 to 25,000 L.
How the estimate works
DEF dosing tracks diesel consumption. We take your fleet's total diesel burn, apply the 3 to 5% SCR dosing range, and size storage so a scheduled refill lands before the tank runs low. Full method in the DEF consumption guide.