GM expects 15% mpg gain from new cylinder deactivation system

Lauckner: "This joint effort combines software expertise from Silicon Valley with powertrain expertise from General Motors."

January 05, 2015 05:00 AM

DETROIT -- General Motors says a new infinitely variable cylinder deactivation system it has been developing with a Silicon Valley start-up can boost the fuel economy of gasoline engines by as much as 15 percent.

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