Hybrid mileage claims are hype?
 

I thought I was cynical but I would not have guessed that the EPA
doesn't
measure how much gas is used in order to figure out how much gas is
used.

The 19-year-old EPA tests for city and highway mileage actually gauge
vehicle emissions and use that data to derive an estimated
fuel-efficiency
rating. The EPA tests pre-production vehicles in a lab to simulate
vehicle
starts and stops on crowded city streets and open road conditions.
According to the EPA website, "The tests measure the waste substances
emitted from consuming the fuel, not the actual fuel consumed. From the
measurement of emissions, EPA can estimate the miles per gallon achieved
by
the vehicle on average."

http://www.wired.com/news/autotech/0...w=wn_tophead_1


--
Steve Williams





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