Emission Control System (ECS) Recommendations on DEF DEF is a high purity liquid that is injected in to exhaust system of Engines equipped with Selective Catalytic Reduction systems. Maintaining purity of DEF is utmost important to avoid any malfunctions in the SCR system. The DEF used in SCR engines should meet requirements of aqueous urea solution 32 (AUS 32) according to ISO22241-1 Standard. DEF conforming to ISO 22241-1 (AUS32) is commercially available in containers of various capacities. Also an individual DEF container may have specific design of filler neck. They may need filler pipe for filling DEF in vehicle. While using DEF refill container, instructions of its manufacturer must be followed. It is strongly recommended to use DEF that is certified by American Petroleum Institute (API) Diesel Exhaust Fluid Certification program or by AdblueTM Diesel Exhaust Fluid Certification Program. Look at the API certification symbol or AdblueTM name on the DEF container.
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• It is unlawful to tamper with or remove any of the SCR system related components.
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It is also unlawful to use DEF that does not confirms to specification requirements according ISO22241-1 standard. •
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Diesel exhaust fluid (DEF) must comply with ISO 22241-1 (AUS32) standard. There is no acceptable substitute. Failure to use the correct DEF may cause engine damage and/or void the warranty. Never attempt to create Diesel Exhaust Fluid (DEF) by mixing agricultural grade urea with water. Agricultural grade urea does not meet the necessary specifications required and the after treatment system may be damaged. Total DEF quantity inside the DEF Tank should never be more than max level (16 litre). Overfill may result in system/component failure. To avoid system/component failures resulting out of impurities present in DEF, only fresh DEF should be filled which confirms to ISO 22241-1 (AUS 32) standard. DEF quality and purity can be ensured only if it is stored and contained properly. Hence ensure that instructions given by DEF manufacturer/supplier have been met, before using DEF in system. Do not add additives to DEF and do not dilute with water. Otherwise, the exhaust gas after treatment system could be damaged. While refilling DEF inside tank, be careful not to allow any foreign particles, liquids, wiping paper/ clothing fibres get inside the system. These may clog or damage the system. Before using containers, funnels, etc. that will be used to dispense, handle or store DEF, make sure to wash thoroughly to remove any contaminants and then rinse with distilled water. Do not use tap water to rinse components that will be used to deliver DEF. Tap water will contaminate the DEF. If distilled water is not available, rinse with tap water and then rinse with DEF. If DEF is spilled over vehicle components and metal surfaces, rinse with water or use sponge wetted with water. DEF residues will corrode the components and metal surfaces, painted body panels. DEF is not a fuel additive and must not be added to the diesel fuel tank. If DEF is mixed with the diesel fuel, engine/fuel system could get damaged. In the event that incorrect fluid is added to the DEF Tank, contact an authorized Mahindra dealer to determine the appropriate repair direction.
8000 Series, Models - 8090/8100 4WD CAB TIER-4 Final
