GM/Detroit 6.5L – Air Induction/Exhaust Systems – CATALYTIC CONVERTER

As part of its emission controls, some 6.5L EFI engine uses a palladium-oxidation catalytic converter (see chart on page 1-2 for 6.5L catalytic converter applications). The converter differs somewhat from traditional gasoline converters. Its primary function is to oxidize the organic elements of exhaust gas before it is passed to the exhaust system. It is not intended to oxidize hydrocarbons or carbon monoxide, or reduces nitrous oxides. The converter operates at normal diesel engine exhaust temperatures and requires low-sulphur diesel fuel, which all diesel fuel in the U.S. will be beginning in 1994.

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