Water In Def Tank

Specifically def is an aqueous urea solution made with 32 5 urea and 67 5 deionized water.

Water in def tank. When injected into hot exhaust as a fine mist and passed over a catalyst def helps convert nox into nitrogen gas and water vapor. A clear liquid similar in appearance to water def is safe to handle by humans pets and the environment. It is a nontoxic solution of 67 5 purified water and 32 5 urea. I ve though about that solution myself when my engine derated when i was very low once.

Def is mostly water about 2 3. Diesel exhaust fluid def is one of the key elements of the scr process. Field tests have shown that even in high temperatures there is no significant risk evaporation from def tanks. Also known as aus 32 and marketed as adblue is a liquid used to reduce the amount of air pollution created by a diesel engine.

To avoid any risk of evaporation keep the cap of the def tank and storage containers securely closed. Def is consumed in selective catalytic reduction scr that lowers nitrogen oxides no. Def available at most service stations for 6 to 10 per gallon is a fluid consisting of urea and deionized water in a 1 2 solution. It s contained in a reservoir separate from the fuel tank and.

Diesel exhaust fluid def evaporates if stored at higher temperatures for a prolonged period because it is 67 5 water. Throw in a gallon or two of water to fool the system so i could get another 100 miles to my next fuel stop with pump def.