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an odd question

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Old Apr 10, 2004 | 04:18 AM
  #1  
plutonium239's Avatar
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From: portland, or
an odd question

Let's assume I am traveling down the road in 5th gear at a steady 60mph. If I shift into 4th, maintaining 60mph and the same amount of throttle, will my mpg be affected by the increase in rpm?
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Old Apr 10, 2004 | 04:26 AM
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Hou-TX-RX-8's Avatar
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From: Houston, TX
Yes
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Old Apr 10, 2004 | 07:03 AM
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Sea Ray's Avatar
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From: Nicholasville, Ky
This car gets best mpg by keeping it under 3700 rpm.
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Old Apr 10, 2004 | 07:28 AM
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From: Melbourne, Australia
between 3400 to 4000 rpm... you want the front valve to open ... it is around 3200.

It is 104 km/h in 6th gear - the power is more and I assume that extra 100 rpm will make the fuel burn better and I assume it will be better fuel mileage

It is a mere difference between say 12 L/100km to around 11.2-11.5 L/100km not big.

I think you might have no fun driving at 60mph (96kmh) on 5th is actually ok.
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