Diesel Exhaust Fluid (DEF)

At Maruti Industries Pune, we manufacture Diesel Exhaust Fluid (DEF) that complies with ISO 22241 standards and is used in SCR-equipped diesel vehicles to reduce harmful NOx emissions. KoolOn DEF supports clean engine operation in BS-IV and BS-VI diesel engines.

Composition Urea Origin Regulation Chemical Reaction Usage in India Packaging Options Compatible OEMs

– 67.5% deionized water
– 32.5% urea (a nitrogen compound)

Derived from urea (synthetically produced) to meet emission norms.

Complies with ISO 22241 standards and used in all BS-IV and BS-VI compliant SCR diesel engines.

When DEF is injected into hot exhaust gas, it breaks down into ammonia and reacts with NOx to form harmless nitrogen and water vapor.

Mandatory for BS-IV & BS-VI commercial vehicles, buses, and passenger cars fitted with SCR systems in India.

Available in: 5L, 10L, 20L, 210L drum, and 1000L IBC tank.

Compatible with brands like TATA, Mahindra, Eicher, BharatBenz, Ashok Leyland, Toyota, MG, Mercedes, Volvo, and Jeep.