Ok, I knew I saw it somewhere..
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Deactivation down to zero: There are a few cars on the road that save gas by de-activating cylinders when they are not needed. The Civic Hybrid, in certain cruising modes, can deactivate ALL of its cylinders. During this time, the electric motor alone powers the vehicle. At other stages of acceleration and cruising, Honda's variable valve system allows cylinders to open and close for the right mix of performance and efficiency.
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-and-
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... its engine never completely disengages and, while combustion can shut down in up to all four cylinders, it keeps turning.
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Of course, they could be wrong too
