DEF Quick Facts - Handling
Q: Should I add the DEF to the diesel fuel?
A: No, vehicles manufactured with SCR technology are designed with a separate urea tank to hold Diesel Exhaust Fluid. The fluid is sprayed into the exhaust system.

Q: Should I add the DEF to the diesel fuel?
A: No, vehicles manufactured with SCR technology are designed with a separate urea tank to hold Diesel Exhaust Fluid. The fluid is sprayed into the exhaust system.