W3036787 Diesel Exhaust Fluid (DEF) DEF is a reactant that's key to the SCR process. It's a nontoxic, ultra-pure solution of urea and ultra-pure water. Urea is a compound of nitrogen that turns to ammonia when heated. The fluid is non flammable, and is not dangerous when handled as recommended. However, it is highly corrosive to certain metals, especially copper and brass. Read the separate section concerning the handling of DEF solution. Use only DEF that is clearly labeled as meeting ISO-22241 standards, and certi- fied by the American Petroleum Institute (API). The container must display the API certification seal. Never use agri- cultural or industrial grade urea.
Use of fluids other than API certified DEF will compromise aftertreatment system performance, increase emissions, and may impact your product warranties. Never dilute DEF with water or any other flu- id. It is recommended that DEF not be stored in extreme hot or cold conditions, or for prolonged periods. Follow the instruc- tions for proper storage and handling as indicated on the container or provided with the purchase. Note: Agriculture mixtures are not pure enough for use in the SCR system and impurities in the solution will comprise the SCR system.
Notes Mack Body Builder Instructions PI / CHU, AN / CXU, GR / GU, TD, LR, TE / MRU USA141023213 Date 2.2018 Body Builder; Engine, MP7, MP8, and MP10 Page 18 (40) All Rights Reserved WARNING Do not put diesel fuel in the aftertreatment DEF tank. Diesel fuel, if sprayed into the hot exhaust along with the DEF, could ignite explosively causing a fire resulting in personal injury or damage to the exhaust system.