EPA to Review Ford Hybrid Mileage Claims
The U.S.
#regulations #hybrid
The U.S. Environmental Protection Agency says it will review Ford Motor Co.'s claims that the company's hybrid Fusion sedan and C-Max MPV average 47 mpg.
Like other carmakers, Ford's results are based on EPA's own fuel economy test cycle. But the agency doesn't independently confirm most results reported by manufacturers.
EPA said it would check the company's numbers after Consumer Reports said last week that its tests found Fusion and C-Max mileage numbers 8-10 mpg below Ford's claim.
CR notes that its test results often vary from the agency's official estimates. But the magazine says 80% of all vehicles it tests fall within 2 mpg of their EPA figures.
The head of the agency's light-duty vehicle compliance division tells the Detroit News there is "absolutely no doubt" that mileage for hybrid systems is significantly more variable than for conventional powertrains. The main reason, experts say, is that driving conditions and techniques can strongly influence the proportion of operating time in electric or electric-assist mode.
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