DEF is a synthetic liquid used to decrease exhaust air pollutants produced by a typical diesel engine. It is one of the most commonly used fuels in diesel engines. DEF is an aqueous urethane solution that contains 32.5 percent urethane and 67.5 percent deionized water. The final product of this complex process is diesel exhaust gas which contains the necessary vaporized fuel constituents. The final product, diesel exhaust gas, has high boiling points and high specific gravity.
The primary purpose of these fluids is to keep your engine from wearing out because the engine has to work so hard. With regular air cooling, your engine will not have to work as hard; therefore, it will save on energy, which will help keep the machine working correctly. These fluids also help the engine cool during hot days, and this helps keep everything excellent, including the engine, which is one of the most extensive parts of the vehicle. If it were not working correctly, you would have to buy a new one, which can get very expensive.
The second function of these fluids is to keep everything else is working smoothly to help keep your costs down to a minimum. Keeping other components of your vehicle working will save you money and keep you from needing costly repairs. These are only a few of the things that makes diesel exhaust fluid a good choice.