It is pointed that the effect of fuel reduction is very significant if the power that drive vehicle at speed in the point of maximum reserve-power select to be the power for HEV fuel engine unit.

发现按原车后备功率最大值时所对应的车速所需的驱动功率作为HEV燃油发动机功率的选择依据，节油效果最显著。

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The laws have led to a reduction in fuel consumption in the U.S.

这些法律已导致美国燃料消耗的降低。

《柯林斯英汉双解大词典》

They found that the aircraft consumed as much as 15% less fuel (coupled with a reduction in carbon dioxide output).

他们发现，飞机消耗的燃料减少了15%（同时二氧化碳排放量也减少了）。

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"At a per-passenger-mile basis, rail is about three times as efficient as travel by car, in terms of fuel efficiency, and six times as efficient as travel by air, so there are pretty substantial pollution reduction benefits both in terms of greenhouse gases and other pollutants."

VOA: standard.2010.02.15

So the fuel consumption reduction with the EDIE with 10% of the fuel supply coming form ethanol would yield a gasoline consumption reduction of 33%.

FORBES: Big Corn Gets Bigger: America's Ethanol Decade

NOte that 23% reduction in fuel consumption is due to the efficiency increase and another 5% reduction is due to the replacement of 5% of the gas by the ethanol (EDIE uses 5% ethanol).

FORBES: Big Corn Gets Bigger: America's Ethanol Decade

Among them: enactment of a national speed limit of 65 miles per hour, freight industry participation in an Environmental Protection Agency program to reduce fuel consumption, and a reduction of highway congestion by raising the fuel tax if necessary.

FORBES: Magazine Article