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Is my math correct?
If your car at idle uses .25gph and you engine on coast for a mile downhill at a constant 60 mph, you have then used only .00416 gallons of fuel. That equates to doing this 240 times 'engine off' to save a gallon, or eternal vigilance!
Last edited by BHarvey; 01-30-2011 at 08:21 AM..
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