A spokesman for General Motors Corp.'s purchasing operations tells WEVTU that the company's use of expensive palladium in catalytic converters is reduced 40% to 60% in each newly developed powertrain system as it reaches production. The first change-over already has been adopted for a new powertrain program. GM cites several methods by which the reductions are being made; a primary factor is new “wash coats,” i.e., the catalytic coating applied to ceramic honeycomb substrates in catalytic ...

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