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Old 06-02-2022, 09:30 AM   #6 (permalink)
Piotrsko
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If the alternator is spinning it will contribute to engine drag, even unloaded. @ 3mpg it isn't noticeable, but as you get higher in the distance per volume of fuel it becomes apparent. You may not ever see it, but your electrical system has a cold function so you may need to trick it even at 14.1v. I suggest a disconnect switch of some sort
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