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Better MPG with gear change - WHY ? [message #357965]

Sun, 23 August 2020 09:14

hertfordnc

Messages: 1164
Registered: September 2009
Location: East NC

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Senior Member

I've seen it said here many times that folks claimed better MPG after switching to a higher final drive ratio.

Also in my Ford Excursion groups, many people claim better MPG after going from 3.73 to 4.10

BUt i know a few car engineers and they are pretty smart guys so when something beats OEM design I am always suspicious.

In the case of the Excursion, it's often related to compensating for larger tires.

Are there other explanations?

Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.

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[Message index]

		Better MPG with gear change - WHY ? By: hertfordnc on Sun, 23 August 2020 09:14
		Re: Better MPG with gear change - WHY ? By: 6cuda6 on Sun, 23 August 2020 09:43
		Re: [GMCnet] Better MPG with gear change - WHY ? By: powwerjon on Sun, 23 August 2020 09:59
		Re: Better MPG with gear change - WHY ? By: JohnL455 on Sun, 23 August 2020 19:40
		Re: Better MPG with gear change - WHY ? By: Matt Colie on Mon, 24 August 2020 11:16

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