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All modern diesel engines with selective catalytic reduction (SCR) units in their exhaust systems can benefit from DEF. These include diesel-powered vehicles such as trucks, buses, tractors, cars, vans and off-road vehicles.

SCR engines use a diesel exhaust fluid (DEF) . The fluid is stored in a separate tank in the system and injected into the exhaust stream. This injection causes a chemical reaction in the SCR catalytic converter which turns oxides of nitrogen (NOx) into environmentally friendly components, diatomic nitrogen (N2) and water. As a result, selective catalytic reduction systems are being used as a sustainable and effective way of protecting the environment.

DEF will help your business to reduce harmful emissions and it will reduce your fuel costs by up to seven percent. The product can be stored for 18 months. It can be used in most weather conditions.

It is not a fuel, nor a fuel additive and needs to be used in a dedicated tank in your heavy-duty vehicle. It is replenished in a similar way to refuelling diesel. Should you spill DEF on your hands, simply wash it off with water.