Selective catalytic reduction uses ammonia to break down NOx emissions into harmless nitrogen and water. It does this by first routing exhaust gases through an oxidation catalyst, which removes ...

Why DEF matters: DEF enables selective catalytic reduction systems to convert harmful nitrogen oxides into harmless gases, helping diesel engines meet strict emissions standards. Common failure points ...

DEF is a key component in lowering pollutants emitted from diesel engines, helping to reduce harmful emissions. Long-haul truckers and diesel engine enthusiasts had to rethink their entire operations ...