bigger alternator better for fuel milage?
the alternator on my f150 is kinda on the weak side while driving with no accessories on its only putting out 12 volts. now i was wondering if i were to get a higher rated alt (current is 65 amps and i have a stock replacement off my parts truck and 100 amp one out of my old diesel that will fit) would the higher amps make it so the alt wouldn't be used as much or am i not thinking clearly?
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