DEF Quick Facts - Corrosive
Q: Is DEF corrosive?
A: Yes, Diesel Exhaust Fluid is corrosive to most metals. Stainless steel is the only metal used in the manufacturing of all DEF pump equipment.

Q: Is DEF corrosive?
A: Yes, Diesel Exhaust Fluid is corrosive to most metals. Stainless steel is the only metal used in the manufacturing of all DEF pump equipment.