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Old 12-15-2017, 09:35 PM   #16 (permalink)
redneck
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Join Date: Jun 2009
Location: SC Lowcountry
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Geo XL1 - '94 Geo Metro
Team Metro
Boat tails and more mods
90 day: 72.22 mpg (US)

Big, Bad & Flat - '01 Dodge Ram 3500 SLT
Team Cummins
90 day: 21.13 mpg (US)
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Just a thought.

How many amps is your alternator pulling ?

How old is the battery ? And have you checked it?

A battery on the way out will pull more amps from the alternator because
of the extra load, leading to a lose of mpg.

Cold weather exacerbates the problem.

Like I said, just a thought.


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