Diesel Exhaust Fluid
Have you heard about an operating fluid called DEF? It is required in most new trucks, buses and coaches.
Whether you have or not, it is likely you will soon be driving vehicles that will require this operating fluid and here we explain what this will mean for you. DEF is a non-hazardous, non-toxic, nonflammable, nonexplosive fluid and is, therefore, very safe to use. DEF is an operating fluid for a new engine technology - it is not a fuel nor is it mixed with fuel. You will need to dispense DEF into an existing separate tank already fitted to your vehicle.
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