"Hypermilers," as they're known, say those techniques and others, such as overinflating tires, can help them get 80 to 100 miles a gallon in a normal car, saving on gasoline that costs more than $4 a gallon.
"The goals of hypermiling are positive, such as eliminating aggressive driving and saving energy," Marshall L. Doney, AAA Automotive vice president, told the Idaho Statesman. "Unfortunately, some motorists have taken their desire to improve fuel economy to extremes with techniques that put themselves, as well as their fellow motorists, in danger."
Adam Winstral of Boise uses some of the techniques but doesn't consider himself a hypermiler.
"Coasting to red lights, turning the engine off at long red lights," he said. "It's simple, and you don't have to piss others off.
"If somebody's on my tail and there's a red light ahead, I might give it a little gas to avoid the rage. However, (if) nobody's behind me, I'm just coasting in."
He conducted his own experiment, first driving as usual without being much concerned about conserving gas and got 30.29 miles per gallon.
The next time he filled up, "I tried to drive extremely conservative, coasting when possible, being aware of my foot on the gas pedal," he said. "This worked out to 35.83 miles per gallon."
He said that adds 52 miles per tank of gas.
Experts say Winstral's techniques won't cause problems but warn that other gas-saving methods - driving way below the speed limit, coasting through stop signs and turning off the engine to coast - can be dangerous.
Driving too slowly, or driving on the white line, can also attract unwanted attention, said Rick Ohnsman, a spokesman for the Idaho State Police.
"Even if we learn they're not drunk, they could get a ticket for failure to maintain a lane," Ohnsman said.
Motorists can also be ticketed for tailgating if they are drafting. Driving too closely behind another vehicle can increase the risk of an accident.
"It might save a little, but not nearly enough to warrant the danger," Ohnsman said. "The savings are minimal, anyway."
Copyright 2008 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Generous tax cuts for corporations and the wealthiest Americans would be delivered in a sweeping overhaul of the tax laws, under a new agreement crafted by Republicans in Congress.
Disney is buying a big chunk of the Murdoch family's 21st Century Fox in $52.4 billion deal, gaining U.S. cable channels and a major film studio and growing overseas as it tries to meet competition from technology...
Disney is buying a big chunk of the Murdoch family's 21st Century Fox in $52.4 billion deal, gaining U.S. cable channels and a major film studio and growing overseas as it tries to meet competition from technology companies.
A federal judge has ruled that a former Oklahoma police officer who is serving a 10-year prison sentence following his 2011 conviction in a police corruption trial isn’t entitled to a reduced term. The Tulsa World reports that U.S. District Judge John Dowdell rejected a request for release from former Tulsa Police Cpl. Harold R. Wells on Wednesday. Wells filed his motion in May 2015.
A federal grand jury in Oklahoma has indicted a 63-year-old man accused of kidnapping his stepdaughter and holding her captive for 19 years in Mexico and elsewhere.