PARIS — Renault SA is likely to adopt lean-burn gasoline engines in the future, but without the system of direct gasoline injection (DGI) it developed itself. The change symbolizes the changing automotive industry, in which more expertise is moving to suppliers, even in core areas like engine development. Renault developed a DGI system it could use with current 3-way catalytic converters. But supplier Robert Bosch GmbH, among others, has been working on a similar system that requires a ...

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