Max MPG
On those engines having direct fuel injection to each cylinder allow an economy mode for 6 cylinder vehicles to reduce to 4 cylinders, 8 cilnders to reduce to 6 or 4. The cylinders would stay out unless load demanded more power. This would increase highway MPG significantly. I'm sure this is already being done on some vehicles but not all.
By: Jerry M.
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Related Tags
economy
engines
fuel
fuel injection
mode
mpg
power
reduce

1 COMMENTS ON THIS IDEA
Dave Bristel To avoid problems due to some cylinders not being used for extended times, you would want a system that alternates which cylinders are active, so while it might go from 8 to 6 to 4 cylinders, which cylinders are being used should alternate. I agree that this WOULD help in many situations, but keep in mind that a larger engine will still be heavier than a smaller engine, and that will mean a lower fuel economy vs. a smaller engine.
2 year(s) ago via
Brian Langston Several car companies have engines that can do this, but none of the Fords.
3 year(s) ago via
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