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Old 05-14-2013, 06:23 PM   #21 (permalink)
t vago
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For all of those people here who are considering/performed the disabling of one or more fuel injectors to kill pistons to achieve cylinder deactivation:

The dead pistons are still passing air, which still requires work to be consumed. This is work that would otherwise have been used to push the vehicle forward.

Basically, you're burning gasoline to pass air through an engine, and you'd be very lucky to get the same EPA figures for running an engine with dead cylinders, as you would with a properly running engine.

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