Volkswagen may be a little late to the party with its cylinder-deactivation technology, but the German auto maker says its system is breaking ground all the same as the first to be implemented with a high-volume turbocharged 4-cyl. engine. Employed on VW’s new 1.4L TSI engine, the system shuts down two of the four cylinders under mid-load situations, improving fuel economy by about 3 mpg (1.3 km/L) in the European driving cycle, the auto maker says. The stop/start system that shuts down ...

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