Quote:
Originally Posted by Robocheme
Thanks. So that's how they get such good (relatively) gas mileage? So, my 29 mpg is really 29*(66/70) =27.3 mpg?
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The speedometer doesn't have to be accurate, but the odometer does. You will of course get better gas mileage if you think you're cruising at 70 mph but in actuality are only doing 66.