When Rosemary Shahan, president of Consumers for Auto Reliability and Safety, looks at a used car, she wonders how many miles have been rolled back on the odometer.

“So many dealers and sellers make profits off this. It’s almost the way they do business,” Shahan says.

A dealer pockets an additional 10 cents profit for each mile rolled back on a car’s odometer. Ten cents for each mile may not sound like much, but it adds up quickly.

Roll back 20,000 miles off an odometer and the price of the car gets bumped up $2,000. That’s an extra two grand for the dealer. Take 40,000 miles off a car and dealer might pocket an extra $4,000 or more.

The National Highway Traffic Safety Administration estimates that odometer fraud costs Americans more than $1 billion in inflated car prices a year. That number does not include inflated financing, insurance and tax costs, additional repair costs, or consumers’ anger and frustration at being cheated.

“It’s buyer beware when you’re dealing with mileage,” says Dick Morse, director of the odometer fraud staff at NHTSA.

Technology fails to solve problem

There was lots of talk that odometer fraud would be curbed with the introduction of digital odometers in the mid-90s. That hasn’t happened.

“As long as there’s a gauge on a vehicle, someone will find a way to roll it back,” says David Szwak, an attorney in Shreveport, La. “The criminal always stays one step ahead.”

It takes about 10 minutes to roll back a mechanical odometer. Rolling back a digital odometer may take a few hours. There are plenty of people out there willing to do it, as NHSTA has learned through its investigations.

“One guy, his whole livelihood is rolling back odometers for dealers,” Morse says. “He’s figured out how to do it. It just takes longer.”

Hard-to-sell cars likely candidates

The most popular targets for odometer fraud are leased company cars. Salespeople rack up lots of miles on these cars before turning them in and dealers get stuck with two-year-old, high mileage autos that are tough to sell.

Wholesale dealers (dealers who buy and sell cars to other dealers) snatch up these high mileage cars, roll back the odometers and sell them to retail dealers. Retail dealers then sell the tampered-with autos to unsuspecting consumers. Most NHTSA investigations involve cars coming back off lease.

“You’ve got a couple million cars coming into the market with 70,000 to 80,000 miles, and they’re rolled back to 25,000 to 30,000 miles,” Morse says.

Any popular, hot-selling vehicle may be a target of odometer fraud. Sports utility vehicles were targeted in much of the 90s. Odometer fraud can happen anywhere, but Morse says it seems to be especially heavy in the Northeast and in states along the Canadian border.

Kilometers-to-miles conversion confusion

One of the latest scams involves used cars coming in from Canada. These vehicles have odometers measured in kilometers that must be replaced with odometers measured in miles. The mileage conversion from kilometers to miles is often inaccurate.

“If you live in a border state — watch out,” Shahan says.

While the majority of odometer tampering happens in the wholesale end of the auto business, it does occur at some retail dealerships. Retail dealers that do odometer rollbacks are often involved in other kinds of fraud.

“If odometer fraud is going on, there’s 10 to 15 types of fraud going on,” Szwak says.

Learning to spot and avoid cars with rolled back mileage may save you a world of hurt.

“The No. 1 piece of advice is they should be skeptical,” Shahan says. “Don’t believe the odometer.”

Beware of wear and tear

Keep your eyes peeled for inconsistencies. Does the odometer reading match the mileage stated in the oil change sticker on the car’s window? Does it jibe with the mileage listed in the car’s repair records? Are there marks on the odometer or misaligned numbers? Does the car show more wear on the brake pedal or rugs than is consistent with the alleged mileage?

A car with 20,000 miles should have its original tires. If it doesn’t, find out why. Trust your instincts.

“If you’ve got an inkling that something’s not right with a car you’re looking at, it’s time to walk away,” Morse says.

Sites such as CarFax l et you check a car’s history by its vehicle identification number. You may be able to find out if a car has had one owner as the seller claims, if the odometer has been rolled back or if a car has beenjunked or salvaged.

A CarFax search, while useful, might not provide a complete history for every auto. The reason? CarFax gets much of its data from state motor vehicle departments, and some of these departments are slow to report auto title information.

“They don’t always get the data in time,” Shahan says. “They depend on getting data from states. Some states are excruciatingly slow in recording the information.”

Ask a mechanic you trust

The best advice for used car shoppers is to have the auto inspected by an independent mechanic before buying.

“Take the car to a good, reliable mechanic to see if the odometer reading is consistent with the wear and tear of the car,” Morse says.

It can save you a lot of cash and a lot of headaches. Most consumers learn about odometer fraud when a supposedly low-mileage car needs all kinds of repairs or when they go to trade in the car and are offered a much lower price.

“Cars are so sophisticated. There’s a lot that you can’t tell by kicking the tires,” Shahan says. “It really takes a pro.”

Amy C. Fleitas contributed to this story.

— Updated: Aug. 22, 2002

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