Quote:
Originally Posted by backpacker3
I was watching a mythbusters yesterday on hypermiling and they found with the all the devices they used for measuring gas mileage that sitting at a light used 0.5 gallons per hour if you figure that your car idles for about 30 minutes on a tank of gas you've used at least half a gallon of fuel to that do pretty much nothing. Considering modern fuel injected cars use the same amount of gas to start up as they do in 7 seconds of idling all you need to do is be stopped for at least 8 seconds to save gas
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Yes, you'll save gas. But the more you use a starter, the faster it will wear out.
I still turn the engine off at lights that are known to be long. But for times of less than a minute it's probably a trade off with starter wear.