INDIANAPOLIS – Chrysler LLC’s fuel-saving Multiple Displacement System has been tweaked to activate more readily, the auto maker reveals. Featured on Chrysler’s vaunted 5.7L Hemi V-8, MDS deactivates 4 cyls. when the engine is operating under optimal conditions, as occurs when cruising at highway speed without headwinds. But for ’08, MDS is available at slightly lower rpm rates, says Craig Love, vice president-rear-wheel-drive product teams. The move narrows what Chrysler insiders call ...

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