Description

The Liqui Moly DEF Anti-Crystal Additive Concentrate is a specialised, ash-free formulation designed to protect the SCR (Selective Catalytic Reduction) system in modern diesel engines. This advanced additive prevents AdBlue® crystallisation, reduces deposit build-up, and optimises the performance and longevity of the entire DEF dosing system. By lowering the surface tension of the urea solution, the additive enables ultra-fine atomisation, ensuring efficient injection and improved system reliability. It also enhances the return flow of AdBlue®, minimising blockages and preventing costly SCR malfunctions caused by crystal formation.