How Many Miles Is Too Many for a Used Car?
Mileage is the first number most shoppers filter by, and for good reason: it is the simplest measure of wear. But two cars with the same odometer reading can be in very different shape, and a high number on the right car can be a better buy than a low number on the wrong one.
The short answer: There is no single cutoff. For most modern cars, mileage becomes a real concern somewhere past 100,000 to 150,000 miles, depending on the model's reliability and how it was maintained. A well-documented car with 120,000 highway miles can be a safer buy than a neglected one with 60,000. Judge miles against age, records and inspection results.
Key takeaways
- A typical U.S. driver covers roughly 13,000 to 14,000 miles a year, so compare a car's mileage with its age.
- Many modern cars run well past 150,000 miles with regular maintenance, but expensive service milestones often arrive between 60,000 and 120,000 miles.
- Maintenance records and an independent inspection say more about condition than the odometer alone.
- Highway miles cause less wear than short trips and stop-and-go driving.
- Very low mileage on an old car can hide problems from sitting, such as dried seals and old tires.
What is considered high mileage for a used car?
A car is usually considered high mileage when its odometer is well above average for its age, or once it passes about 100,000 miles. Average annual driving is the yardstick most buyers use.
Federal Highway Administration figures put the average driver at roughly 13,500 miles per year, and the FHWA's table of average annual miles shows the average varies by age group. A quick way to judge a listing: multiply the car's age in years by 12,000 to 15,000.
| Car age | Typical mileage range | Below range | Above range |
|---|---|---|---|
| 3 years | 36,000-45,000 | Under 30,000 | Over 55,000 |
| 5 years | 60,000-75,000 | Under 50,000 | Over 90,000 |
| 8 years | 96,000-120,000 | Under 80,000 | Over 140,000 |
| 10 years | 120,000-150,000 | Under 100,000 | Over 170,000 |
Above-range mileage is not automatically bad. It often means highway commuting, which is easier on a car than short city trips. It should lower the price, though.
How long do modern cars last?
Many modern cars, trucks and SUVs routinely pass 150,000 miles and some go well beyond 200,000 when they are maintained on schedule. Better engine designs, synthetic oils and improved rust protection have stretched lifespans compared with cars from a few decades ago.
The average age of light vehicles on U.S. roads reached a record 12.8 years in 2025, according to S&P Global Mobility. People are keeping cars longer partly because they last longer.
Lifespan varies widely by model. Some engines and transmissions have strong long-term records, while others have known weak points that show up at moderate mileage. Check reliability data for the specific model year, and see our list of the most reliable used cars for models with good long-term track records.
Which mileage milestones matter most?
The miles that matter are the ones where expensive scheduled maintenance comes due. A car just past one of these milestones without proof the work was done is a bigger risk than one approaching it with records.
Common milestones, which vary by vehicle (check the owner's manual for the exact intervals):
- Timing belt replacement: engines with a timing belt (not a chain) often need one somewhere between 60,000 and 105,000 miles. On some engines, a broken belt can destroy the engine.
- Spark plugs: many modern engines use long-life plugs replaced around 100,000 miles.
- Transmission fluid: intervals differ widely, and some automakers call the fluid "lifetime" under normal use.
- Coolant, brake fluid and drive belts: often due once or more in the first 100,000 miles.
- Suspension parts: shocks, struts and bushings wear gradually and often need attention past 75,000 to 100,000 miles.
- Hybrid and EV batteries: most automakers warranty high-voltage batteries for at least 8 years or 100,000 miles, and some longer.
When you find a car near one of these milestones, either confirm the work was done or price the job into your offer.
Are highway miles better than city miles?
Yes, in general. Highway driving puts steady, moderate load on the engine and transmission with few gear changes or brake applications, while city driving brings constant stop-and-go, idling and short trips that never fully warm the engine.
You usually cannot verify exactly how a car was driven, but there are clues. A car with high mileage for its age, little brake wear and a clean interior was likely a highway commuter. A low-mileage car with worn brakes, a tired interior and a history of registration in a dense city may have lived a harder life than its odometer suggests. Ask the seller how the car was used and look at where it was registered on the history report.
Is a low-mileage old car a good deal?
Sometimes, but low mileage on an older car brings its own risks. Cars that sit for long stretches can develop dried-out seals and gaskets, flat-spotted or aged tires, weak batteries, stale fuel and corrosion in the brakes.
Tires age even when they are not driven. Check the four-digit date code on the sidewall (week and year of manufacture), and plan to replace tires that are several years old regardless of tread depth. Ask your mechanic to look closely for leaks and brittle rubber parts. Also confirm the low mileage is real by comparing odometer readings across the history report, since rollbacks still happen. Our guide to odometer fraud covers the warning signs.
When is a high-mileage car a smart buy?
A high-mileage car can be a smart buy when it comes from a model with a strong reliability record, has thorough maintenance records, passes an independent inspection and is priced to reflect its miles.
These cars suit buyers who drive modest distances, keep cash for repairs, and plan to own the car for a few years. The steepest depreciation has already happened, so a high-mileage car can lose value slowly from here. Our guide to used car depreciation explains why.
High mileage is a harder sell if you need a long-term car for heavy driving, if the model has known failures at high mileage, or if the price is close to that of a lower-mileage example. Weigh mileage against the car's age too: our guide on how old a used car you should buy covers that trade-off.
How do you check a high-mileage car before buying?
Get the records, run the history and pay for an independent inspection. These three steps matter more as mileage climbs.
- Ask for service records and compare them with the maintenance schedule in the owner's manual.
- Run a vehicle history report and check odometer readings for a consistent pattern.
- Look up open recalls at NHTSA's recall site.
- Have a mechanic check for leaks, compression or oil consumption concerns, transmission behavior and suspension wear.
- Ask the mechanic what major services are coming due in the next 20,000 miles and what they cost.
Read our pre-purchase inspection guide for what a thorough inspection covers.
Set a mileage limit without losing good options
A hard mileage filter can hide cars that would suit you. When you describe your car to Scout, you can say something like "2017 or newer Toyota Camry under 90,000 miles, under $18,000 within 50 miles of Denver," and Scout shows what it understood before saving the search. Scout's used car alerts then email you when a matching dealer listing appears.
Frequently asked questions
Is 100,000 miles too many for a used car?
Not necessarily. Many modern cars run well past 100,000 miles with regular maintenance. The questions are whether the car's major services, such as a timing belt if it has one, have been done, whether the model has a good reliability record, and whether the price reflects the mileage. An independent inspection will tell you more than the number itself.
How many miles per year is normal for a used car?
Roughly 12,000 to 15,000 miles a year is a common benchmark, and FHWA data puts the average driver at around 13,500 miles a year. Multiply a car's age by that range to see whether its mileage is high, low or typical. Above-average mileage often reflects highway commuting and should lower the price.
Is it better to buy an older car with low miles or a newer car with high miles?
It depends on how each was used and maintained. A newer high-mileage car often has more modern safety features and highway-driven miles, while an older low-mileage car may have aging rubber parts and tires. Compare maintenance records and inspection results. If both check out, a newer car with more safety equipment is often the better choice.
How many miles do cars usually last?
Many modern cars last 150,000 to 200,000 miles or more with regular maintenance, though results vary widely by model, climate and care. Rust, neglected maintenance and known design weaknesses shorten lifespans. Research the specific model and year, and look for maintenance records showing oil changes and major services were done on schedule.
Should I avoid cars with over 150,000 miles?
Not always, but be more selective. Above 150,000 miles, focus on models with strong long-term reliability, complete service records and a clean inspection, and price in upcoming repairs such as suspension parts. These cars suit buyers who drive modestly and have money set aside for repairs, rather than those who need a long-term, high-mileage commuter.