Paul A. Eisenstein, the Detroit Bureau
Studies show that fuel economy has become the number one concern among the American car buyer – but drivers have higher top speeds, which greatly reduced the mileage Gets a car was pressure.
While the common sense might seem, a new study clearly quantifies the impact of putting the pedal to the metal. And it is that it amazingly few differences between vehicles, whether brick-like SUVs or sleek, wind was sports.
"People like rules of thumb, and if you have increased your speed of 50 to 60 miles per hour, we find the largest number of vehicles, which is about 12 percent, fuel consumption will go," said Brian H. West, a researcher at the Oak Ridge National Laboratory, in Knoxville, Tennessee, where the study was conducted.
You see a little faster, press you fall 14 percent go from 60 to 70 mph, while the fuel consumption further 16 per cent will fall when you move the speedometer up to 80 kilometres.
While West says he was "surprised" by the overall results of the new study, he and the rest of the research team to make an unexpected discovery. You were expecting to see some types of vehicles do better than others, but the decline in fuel economy showed consistency across all vehicle classes even the heaviest, and boxiest SUVs, with only a one or two percent deviations from the least efficient models.
Hybrid vehicles, which are to the stop-and-go city traffic, where their batteries recharged constantly, really are included. At highway speeds, there is little opportunity for them to energy to regenerate, which serves the gasoline they compensate for consumers. And in fact, many hybrids have actually lower highway mileage reviews than what the EPA that they get in the traffic estimates.
Because West refused to discuss the political consequences of increased fuel consumption – and opponents of higher speeds could be used the new study by proponents. A vehicle that might get 40 miles per gallon to 50 miles per hour would see something closer to 25 mpg at 80 km/h.
Speeds lifted first passed federal restrictions increased significantly since Congress, during the energy crises of the 1970s, which at one point the US speed limit to 50 mph lowered and then raised it to 55, the infamous "double-nickel."
Late last year, opened Texas of country quickest route, a toll road route in the vicinity of Austin with a top speed of 85 mph.
The increase of speed created chaos for both the EPA by Congress on automotive fuel economy standards and test, and the automaker is charged depending on the monitor after EPA results.
The tests, which determine the numbers that were so-called "Munroney sticker" several times in the past four decades, last with the beginning of the model year 2012 revised the label for a new vehicle window. The latest procedures include a short burst at 80 miles per hour, but in general the results reflect slow ride, which means much less aggressive, that a large percentage of American motorists lower fuel consumption than is specified.
And the faster they go, the new Oak Ridge study confirms, the faster the gap grows.
Copyright 2013 the Detroit Bureau
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