I'm confused... (1 Viewer)

chford

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Jul 29, 2007
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101
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Cincinnati, OH
 
 
Why did replacing my battery suddenly increase my gas mileage?

Further, my mileage has decreased over the past 3 months; I've been monitoring it via my ScanGauge. All of the sudden the battery craps out, I replaced it and danged if my mileage didn't start reporting 2-3 mpg more!

Any ideas out there or is this an impossibility?
 
Joined
Jun 23, 2005
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205
Location
Mountain Home ID
 
Probably the extra drag the alternator has as it is pumping out all the current it can to bring the battery up to where it should be. That would be my guess.:hmm:
 

retrofive

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so. oregon
 
 
Does the scan gauge after loosing power (replacing the battery) have to re-learn or anything?
 

chford

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Jul 29, 2007
Messages
101
Location
Cincinnati, OH
 
 
>Probably the extra drag the alternator has as it is pumping out all the current it can to bring the battery up to where it should be.

Seems reasonable...for a half banana mechanic type like me!

>Does the scan gauge after loosing power (replacing the battery) have to re-learn or anything?

It doesn't seem that's the case. Seemed to hold the settings from pre-battery change.
 
Joined
Feb 25, 2007
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The Scangauge uses flash memory, which (from what I have read) doesn't require electricity to remember stuff.
 

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