2007 Diesel Emissions Standards Will Require New Oils and Filters, Ultra-Low Sulfur Fuel

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Background
Oil total base num­ber (TBN) is ash that neu­tral­izes acids in oil
Exhaust gas recir­cu­la­tion (EGR) returns some cooled exhaust to com­bus­tion cham­ber low­er­ing tem­per­a­ture and NOx for­ma­tion
SCR sys­tems require infra­struc­ture to dis­trib­ute urea (ammo­nia) to truck tanks for injec­tion to pre­vent NOx for­ma­tion
Cur­rent sul­fat­ed ash lev­els for CI-4 oils is 1.3–1.6%




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