Cops: "Hypermiling" Often Risky, Illegal
AAA Agrees; Master Hypermiler Clarifies Suggested Techniques, Tells Motorists To Steer Clear Of Dangerous Maneuvers
-
Play CBS Video
Video
Hypermiling Safety Questioned
Hypermiling is a set of techniques that can help you save gas, but police say some drivers are driving dangerously or breaking the law outright. Bianca Solorzano reports.
-
Video
Live Video
CBSNews.com Live Video
-
Photo
(iStockphoto)
-
Interactive
Gas Prices
State-by-state averages, tips to improve mileage and a look at what fuels prices at the pump.
The AAA and Connecticut State Police are warning against extreme measures in "hypermiling," a practice in which unusual techniques are used to boost vehicles' mileage.
They include rolling through stop signs to avoid braking, turning off a car's engine or shifting into neutral to coast down hills, over-inflating tires to decrease rolling resistance against pavement, and other techniques.
One action that authorities say is particularly dangerous is called "drafting," tailgating big rigs in hopes of cutting wind resistance and being pulled along in a truck's wake.
"Every one of them is illegal," Connecticut State Police spokesman Trooper William Tate said of the "hypermiling" techniques.
"But more importantly, they're extremely dangerous. Every one of them is the cause of accidents," he said.
Most accidents on secondary roads are caused by drivers who don't obey traffic signals, such as stop signs or traffic lights, Tate said. Most highway crashes are caused by tailgating and unsafe lane changes, which are often related, he said.
"Following a tractor-trailer too closely, you don't have the ability to see beyond it as you would when following a passenger vehicle," Tate said. "You're risking your life, and the lives of motorists behind you."
On The Early Show last month, leading hypermiling advocate Wayne Gerdes extolled its virtues to, among others, CBS News correspondent Bianca Solorzano.
He stressed to Solorzano Monday that rolling through stop signs and driving right behind big rigs are NOT part of his way of hypermiling.
"What we recommend," he says, "is staying in the right hand lane, following the speed limits and, as cars go around you, they create a low pressure zone across the entire roadway, and that's called the traffic-side draft. And it does give you another 15 to 20 second boost as the lower pressure area you're coming through helps you along."
At times, says Solorzano, Gerdes does shut off his engine to coast downhill, but on his Web site, CleanMPG.com, he teaches that it's illegal in certain places. And he emphasizes that it's an advanced technique that needs to be practiced in a remote area, and that law enforcement officials continue to insist that shutting off your engine is a dangerous practice.
Police have been told to be on the lookout for hypermilers, Solorzano adds.
Fran Mayko, a spokeswoman for AAA Connecticut Motor Club, says "hypermiling" has been around for a while, but that it has drawn more attention as gas prices have jumped and drivers are seeking ways to boost their mileage.
This is the first time AAA has issued a warning about it, she said.
"These folks who are extremists, apparently they get 70, 80, 90 miles a gallon," she said.
She said drivers should stick to tried-and-true mileage boosters: keeping up with routine maintenance, ensuring tires are properly inflated, keeping unnecessary weight out of the car and driving at the posted speed limit.
According to the U.S. Department of Energy, gas mileage typically decreases rapidly at speeds above 60 mph. Every 5 mph that a driver goes above 60 mph is like paying an additional 30 cents per gallon of gas, according to the government.
AAA said the average price on Saturday for regular unleaded gas nationwide was $4.07 per gallon, up $1.10 from the same time last year.
© MMVIII, CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.



- 1
- 2
- next
See all 54 CommentsWAS THEN COASTING. THE PROBLEM IS THAT YOUR RESEARCHERS NEGLETED TO DO THEIR WORK FOR THIS STORY
Also, I am skeptical of the amount of gas saved with slow acceleration. Low average speeds help fuel economy, and accelerating slowly might help in that way. But, engines become more efficient at wider throttle openings (as long as you don''t wind them up too far) due to decreased pumping losses and increased effective compression. That''s why a smaller engine gets better mileage. The most effective driving may well involve moderately brisk acceleration to a sensible speed.
Crazy, save 2 cents in gas and add 1,000 miles of additional wear to the engine- every time you start up the engine it is oil starved for a few seconds before the oil pressure builds up- that''s where the majority of the bearing wear happens!
You also put extra wear on the starter and those are not cheap to replace either.
Of course, they are. This is America where just about everything is illegal
One of the 1st things Ronald Reagan did as president was rip apart all of the green energy initiatives and directions Carter had set up in the late 1970''s during the last big oil scare...
With in a few years Reagan had everyone enjoying cheap gas and SUV''s.... With hindsight being 20/20... will we allow this ot happen again ???
I''m all for us drillin gour own oil... BUT WE MUST MAKE OIL COMPNAIES USE THEIR EXISITNG LEASES 1ST...
------a walk down memory lane. Ronald Reagan, Hollywood cowboy hero number one made fun of Jimmy Carter along with the other right wing neo con republican libertarians. Ronnie arrogantly boosted highway speeds and the right wing corporate/religion/government colluding hoes pushed SUVs creating a greater dependency on foreign oil in the interim. We went from 30% to 60% dependency in the years since Carter.
I guess Jimmy, the nuclear physicist was right on track 30 plus years ago and billions of barrels of wasted crude oil natural resources later.
How will that stuff money in the pockets of the oil companies and the Republican Party?
IT''S ILLEGAL TO SAVE GAS!! And the Republicans will lock you up if you try to do so.
Had enough America? Like 4 more years of Bush/Republicanism? Because they WANT $10 gas - they NEED $10 gas.
If McSame is elected gas will be $10 by the end of his first year in office. It''s PLANNED.
With in a few years Reagan had everyone enjoying cheap gas and SUV''''s.... With hindsight being 20/20... will we allow this ot happen again ???
Posted by ddaryl1
I think we will. Most people are gullible sheep. How else do Christian evangelical faux prophets become multi-millionaires preaching the selective ludicrousness from the old testament they do whilst claiming to just love Jesus and conveniently ignore every other word Jesus spoke of in the new testament? These faux prophets mock Jimmy Carter because they are being paid by someone to preach a right wing corporate rhetoric that is designed to exploit to the peril of posterity and line the pockets of an extreme gluttonous minority.
The arabs opened up the pipes and made oil cheap and we went from 30% dependent on foreign oil to 60%. White men born and raised in this country have committed treason before for personal gain and the white men, the devils who have filled those corrupted seats in Washington D.C. have committed treason against the posterity and integrity of the U.S. Are they short sighted unto their own best interests? Maybe, greed is said to be blinding.
For the complete idiots on this forum who blame envirnmental initiatives as the cause of any of these problems U "people" need to crawl out of your holes and look at the Great Decider has done to this nation. He''s not an idiot. He and his father both believe in the "New World Order" where big oil and big billinaires dictate to the world what is best to keep these liars and thieves in power.
WOW!!! No WONDER these people are trying to do these stupid things--what a PAYOFF!!
Of course, common sense should tell you that NOTHING is worth risking your LIFE for--even higher gas mileage!!
yes it is true--hindsight is clear and visionaries are often laughed when ahead of their time.
Reagan was the start of the downward spiral of deregulation and corporate greed continued under Bush I and II.
I think people are realizing we need to rollback to pre-Reagan to save the country. The Bushes were bad but undoing what they did is not enough.
WOW!!! No WONDER these people are trying to do these stupid things--what a PAYOFF!!
Of course, common sense should tell you that NOTHING is worth risking your LIFE for--even higher gas mileage!!
-----------------------------------------------
Posted by feddupp at 10:54 AM : Jun 30, 2008
The 70+ MPG numbers are probably grossly overexaggerated. Kinda like they need to justify their reckless behavior, so they pad their numbers.
I also find it hard to believe that the AAA spokesperson even mentioned those numbers. You know some idiots reading her comments are going to experiment, regardless of the dire warnings in the article. What the he11 was she thinking?
On the freeways keep your speed at or below the limit.
I''ve increased my mileage up to 50% using these techniques.
On the freeways keep your speed at or below the limit.
I''ve increased my mileage up to 50% using these techniques.
1. if you are on the East Coast heading north try to avoid Delaware at all costs. The stretch between the Maryland border and the NJ Turnpike is criminal. If you want to see you gas gauge heads towards E while not moving, try Delaware.
2, figure out a non-lethal way to get the wing-nut drivers out of the left lane as they drive 5 mph below the speed limit. As cars get stacked up a mile long; it sickens me to see miles of empty road ahead of these idiots with no way to get there.
If you want to drive slow either keep to the right or don''t drive on highways. Stay on the side streets.
Wrong, I have seen my full tank go from 300 to 355 miles per fill up by staying above 60 where my transmission overdrive is most efficient.
Posted by terrorislami
You are overly simplistic. You''re stupid right wing divisiveness is you being played by special interests. The nuts you support have made us more dependent putting oil profits through over consumption ahead of common sense. Jimmy Carter wanted conservation and to reduce out dependence on foreign oil. That is not a right wing family value. The right wing is the party of greed, excess, waste and the destruction of all ideals from the american revolution.
Anybody that had great ideas on how to improve mileage has been paid off to keep their ideas to themselves by the big companies. Just to keep the gas mileage low and as prices soar.
If you like to save money, gas and insurance payments and help the American economy then look seriously at GM-volt.com
Jonathan Cassidy
I will sell my Prius to get a Volt
jcassidy@prudentialmanor.com
I am an urban real estate associate broker with a bus pass in my pocket.
READ your driver''s manual. On a US interstates ALL lanes are traffic lanes. The far left is not for passing only, they are not the autoban. Slower traffic should keep right as a courtesy. It is not a law.
If the right lane is moving 55 and I am doing 65 in a 70mph zone I''m not reducing speed to 55 so a jackass like you can get where he is going quicker. Screwe you. Getting dangerously close to my bumper will get you a visit from THE MAN ''cause I''ve called in road rage morons with my cell phone and saw the cops pull them over for it. You better obey the LAW. Not your mythology on road travel.
DEMONIC-RAT HUSSEIN IS NOT THE SOLUTION,,,
magoo2u1
Actually in some states it is against the law to hold up traffic in the left lane.
Well, Magoo, in Oregon you couldn''t be more wrong and yes I DID read the drivers manual. A copy can be found at: http://www.odot.state.or.us/forms/dmv/37.pdf
From page 60 of the Oregon Drivers Manual:
"A slowpoke on a freeway can be as dangerous as a speeder. Remember, if you drive at a speed below the flow of traffic, you must use the right lane. Freeways often have several lanes in each direction. On these roads, you should leave the extreme left lane for faster traffic. If you drive at an even speed, you will have less need to change lanes. Remember, lane-hopping any time is dangerous, annoys other drivers, increases the risk of collision, and seldom saves time. Sudden bursts of speed also waste gasoline. If you are traveling in the left lane and someone comes up behind you at a faster speed, move one lane to your right. Do not tie up traffic in the left lane."
READ your driver''''s manual. On a US interstates ALL lanes are traffic lanes. The far left is not for passing only, they are not the autoban. Slower traffic should keep right as a courtesy. It is not a law.
If the right lane is moving 55 and I am doing 65 in a 70mph zone I''''m not reducing speed to 55 so a jackass like you can get where he is going quicker. Screwe you. Getting dangerously close to my bumper will get you a visit from THE MAN ''''cause I''''ve called in road rage morons with my cell phone and saw the cops pull them over for it. You better obey the LAW. Not your mythology on road travel.
I wonder if CBS News or Bianca Solorzano stopped to consider the dangers when airing this story. Typical news coverage - Take NO responsibility for the content and consequences even when common sense says it''s not a safe idea.
Actually, here in Michigan, there are signs on the highways stating that when driving on a 4-lane highway (2 in each direction), you MUST use the right lane except when passing. I don''t see it enforced often, but it is a law nonetheless.
P.S. this is all so familiar from 30 years ago.
Actually, I was responding with facts and Oregon law to a user named "Magoo" (rhymes with "Not a clue").
Once again, from page 60 of the actual Oregon Drivers manual which can be found at:
http://www.odot.state.or.us/forms/dmv/37.pdf
"A slowpoke on a freeway can be as dangerous as a speeder. Remember, if you drive at a speed below the flow of traffic, you must use the right lane. Freeways often have several lanes in each direction. On these roads, you should leave the extreme left lane for faster traffic. If you drive at an even speed, you will have less need to change lanes. Remember, lane-hopping any time is dangerous, annoys other drivers, increases the risk of collision, and seldom saves time. Sudden bursts of speed also waste gasoline. If you are traveling in the left lane and someone comes up behind you at a faster speed, move one lane to your right. Do not tie up traffic in the left lane."
Posted by OregonDriver
Not if there are signs in the median posted "Slower traffic keep right". Then it is a law. A driver can get a ticket for not obeying traffic signs.
- 1
- 2
- next
See all 54 Comments