Quote:
Originally Posted by Sven7
Didn't they significantly change test procedures since 1972?
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Early dynamometers could not withstand acceleration rates in excess of 3.3 mph/second without tire slippage on the rollers.
Improvements with modern dynos have allowed the EPA Mobile Sources folks to test at higher acceleration rates and velocities.
In the September,2009,CAR and DRIVER's "THE TRUTH A8OUT EPA NUMB3RS (sic),by Dave Vanderwerp,they go into the US06 high-speed (80 mph max)cycle;the SC03,or "A/C," cycle,and cold FTP test,all of which are attempts to generate mpg estimates which better reflect the 'real world.'