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Test: Alternator vs. no alternator = 10% MPG gain @ 70 km/h
(Note: this thread originally written October 2006.)
Preliminary results
Speed 70 km/h / 43.5 mph
A: alternator belt ON - 71.16 mpg (US) - avg of 3 bi-dir runs (6 one-way runs)
B: alternator belt OFF - 78.08 mpg (US) - avg of 3 bi-dir runs
A: alternator belt ON - 70.2 mpg (US) - avg of 2 bi-dir runs
Or about a 10% improvement, sans alternator
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