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Author Topic: Fuel Economy When Driving in a Gear Not Meant for that speed  (Read 329 times)

Offline RunsinLight

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Fuel Economy When Driving in a Gear Not Meant for that speed
« on: February 12, 2011, 03:14:54 pm »
Lets say I'm driving 50 KM in 5th gear. Probably not an appropriate gear for that speed.  Will I still get better fuel economy at that speed then I would if I was in say 4th? 
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Online rrocket

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Re: Fuel Economy When Driving in a Gear Not Meant for that speed
« Reply #1 on: February 12, 2011, 03:22:58 pm »
Tough to say.  Depends on gearing.  If the car isn't bucking or lugging at 50km/h it might be fine.
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Offline maritime_storm

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Re: Fuel Economy When Driving in a Gear Not Meant for that speed
« Reply #2 on: February 13, 2011, 07:52:53 am »
It would depend on the vehicle, it's gearing and the road conditions. If you are lugging the engine then no, the fuel economy would be worse. Look at the torque@RPM figure for that particular engine, peak torque RPM is where that particular engine is most efficient under load.
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Offline safristi

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Re: Fuel Economy When Driving in a Gear Not Meant for that speed
« Reply #3 on: February 13, 2011, 09:02:49 am »
 driving 50Km in 5th speed..........makes no sense as a question >:(.....higher revs = higher fuel....simple .....
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