Quote:
Originally Posted by Chrysler kid
What I've always heard is that it takes more fuel to start the car than to let it idle,
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From an old wife perhaps? BMW and Ford claim the break even point is 3 and 5 seconds for their stop start systems.
Funnily enough, the starter and alternator have about the same rating on most cars, if you have an 80A starter, you'll have somewhere around an 80A alternator. This means if you run the starter for 2 seconds to start the engine, the alt should be able to replace that energy in 2 seconds (battery charge acceptance not withstanding).