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A three-way catalytic converter on a gasoline-powered 1996 Dodge Ram Simulation of flow inside a catalytic converter. A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.
The National Highway Traffic Safety Administration is investigating reports of alleged engine failures in GM's 6.2-liter L87 V-8, an engine used in a wide variety of trucks and SUVs.
The 2004 model Pathfinder Armada was unveiled on April 17, 2003, at the New York International Auto Show. Developed under Carlos Ghosn's NRP (Nissan Revival Plan), development was done in September 1999 to 2003 under lead designers Shiro Nakamura and Diane Allen and chief engineers Yuzo Sakita and Larry Dominique. In January 2001, a final ...
In catalytic converters used on automobiles, the combustion of leaded gasoline produces elemental lead, lead(II) oxide, lead(II) chloride, and lead(II) bromide. Lead alloys with the metals present in the catalyst, while lead oxides and halides coat the catalyst's surfaces, reducing the converter's ability to reduce NOx emissions.
In a 2021 report, the NICB stated that "in 2018, there were 1,298 catalytic converter thefts reported. In 2019, 3,389 thefts were reported. In 2020, reported catalytic converter thefts jumped massively to 14,433, with December leading the way with 2,347 thefts, or roughly 16 percent of the yearly total – in just one month."
Caterpillar and Navistar had initially chosen to use enhanced exhaust gas recirculation (EEGR) to comply with the Environmental Protection Agency (EPA) standards, but in July 2012 Navistar announced it would be pursuing SCR technology for its engines, except on the MaxxForce 15 which was to be discontinued. Caterpillar ultimately withdrew from ...