Odometer Checks: Verifying Mileage on Auction Cars

Mileage is one of the biggest single factors in a car's value, which is exactly why it gets tampered with. Auctions record an odometer status alongside the number, and reading that status correctly is as important as the number itself.

The three odometer statuses

• Actual. The reading is believed to be the true mileage. This is the status you want.
• Not Actual, or discrepancy. There is reason to doubt the reading. It may have rolled over, been altered, or been recorded inconsistently. Treat the number as unknown.
• Exempt. The car is old enough, or of a type, that mileage disclosure is not required. Common on older vehicles. It is not an accusation, but it is not a guarantee either.

A "not actual" status is a serious flag. It does not always mean fraud, but it means you cannot rely on the number to price the car.

How mileage gets checked over time

Mileage is recorded at many points in a car's life: service visits, inspections, title transfers and auction intake. A history record strings these together. The pattern should climb steadily. What you are looking for is a break in that pattern.

Signs of a rolled-back odometer

• A recorded reading that is lower than an earlier one
• A big jump followed by a much smaller later figure
• Mileage that does not fit the car's age, wear or service history
• Digital clusters that were reset, sometimes visible as inconsistent segment wear

Cross-check against physical wear

If you can see the car or detailed photos, compare the number against the wear that mileage causes:

• Pedal rubber, steering wheel and gear selector wear
• Driver's seat bolster and door armrest condition
• Worn switches and a shiny start button on a "low mileage" car

A 30,000-mile reading on a car with a polished-smooth steering wheel and worn pedals does not add up.

The practical routine

• Read the odometer status first. If it says not actual, price the car as if the mileage is unknown.
• Check the recorded mileage history for a clean, rising line.
• Match the number against physical wear in the photos.
• Confirm the reading in the photo matches the one in the listing.

Mileage fraud is one of the more common problems in used and auction cars. A few minutes checking the status and the pattern is the cheapest protection you have.