EPA10 and Newer Engines
Notice: Follow these guidelines for engines that comply with EPA07 or newer regulations, or damage may occur to the aftertreatment device (ATD) and the warranty may be compromised.
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Use ultralow-sulfur diesel with 15 ppm sulfur content or less.
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Do not use fuel blended with used engine lube oil or kerosene.
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Use only approved engine lube oil. For lists of engine oils approved for Detroit Diesel engines, refer to the Engine Operator Manual, accessible on Lubricants, Fuels & Coolants on the DTNA Portal. For third party engines, please refer to the engine manual.
Important: Using non-specification fuels or oils can lead to shortened diesel particulate filter (DPF) cleaning or replacement intervals.
Important: See the engine manufacturer's operation manual for complete details and operation of the ATS.
The EPA mandates that all engines built after December 31, 2009 must reduce the level of emissions exhausted by the engine to the following levels:
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Nitrogen Oxides (NOx) – 0.2 g/bhp-hr
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Particulate Matter (PM) – .01 g/bhp-hr
To meet EPA guidelines, engines that are compliant with EPA10 and newer regulations use an ATS where the exhaust first passes over the diesel oxidation catalyst (DOC), then passes through the diesel particulate filter (DPF), which traps soot particles. The soot is burned to ash during a process called regeneration (regen). A Selective Catalytic Reduction (SCR) device is used to reduce NOx downstream of the engine. After exhaust gases leave the DPF, a controlled quantity of diesel exhaust fluid (DEF) is injected into the exhaust stream. In the presence of heat, DEF is converted to ammonia gas, which reacts with NOx in the selective catalyst chamber to yield nitrogen and water vapor, which exit through the tailpipe.