How Bad Is 100000 Miles On A Car?

My Experience with High Mileage Cars

As a car blogger, I’ve encountered and tested many cars with high mileage. In my experience, vehicles with over 100,000 miles are not necessarily bad, but they require more frequent maintenance and can develop some issues that are not seen in newer cars. However, with proper care and maintenance, a car can drive well past 100,000 miles and still maintain a comfortable and smooth ride.

My personal car, a 2007 sedan, has over 180,000 miles, and it still drives like clockwork. While I do experience a few issues that need more attention than before, I follow a strict maintenance schedule, and my vehicle rewards me with reliable performance.

Understanding the Effects of Time and Mileage on a Car

A car’s mileage and age are two significant factors that affect its performance and maintenance. Over time, the car’s components start to wear out, and it’s essential to replace them to keep the vehicle running smoothly. The longer a car is driven, the more wear-and-tear it experiences. When a car reaches a certain age or mileage, some parts may start to fail, and more maintenance will be needed to keep it roadworthy.

One critical thing to remember about the effects of mileage on a car is that not all cars are the same. A car’s performance and maintenance needs will depend on several factors, including the make and model, the car’s build quality, and the driving conditions.

How 100,000 Miles Affects the Value of Your Car

In the used car market, the cut-off point for what’s considered “high mileage” is around 100,000 miles. A vehicle with over 100,000 miles typically loses its resale value, and it may be harder to sell. However, the actual value depreciation will depend on the car’s make and model, its overall condition, and the demand in the market.

If you’re planning to sell or trade in your car with over 100,000 miles, it’s essential to prepare it for sale by giving it a thorough cleaning and making any necessary repairs. By doing so, you can increase the chances of getting a higher resale value.

Common Maintenance Issues for Mileage Over 100,000

  • Routine maintenance- Regular oil changes, brake inspections, and tire rotations are essential for cars with high mileage to maintain optimal performance
  • Timing belt replacement- Most cars need their timing belt replaced between 60,000 and 100,000 miles. The timing belt keeps the engine running correctly and can cause severe engine damage if it fails
  • Suspension components- The shocks, struts, and bushings will usually need to be replaced at some point after hitting 100,000 miles
  • Transmission and engine issues- Cars with high mileage may experience transmission slipping, engine overheating, or oil leaks, all of which require significant repair or replacement

Tips for Maintaining a Car with High Mileage

Maintaining a car with high mileage requires extra care and attention. Here are some tips to help you keep your vehicle running smoothly:

  • Stick to a strict maintenance schedule and keep up with regular oil changes, brake inspections, and tire rotations.
  • Pay attention to any strange sounds or reactions from the car’s components and address them quickly before they turn into more significant issues.
  • Replace timing belts, suspension components, and other parts according to the manufacturer’s recommendations or when your mechanic recommends.
  • Consider using synthetic oil, which can help reduce wear on the engine components and prolong their life.

The Pros and Cons of Buying a Car with 100,000 Miles

If you’re in the market for a used car, buying a vehicle with over 100,000 miles can be a great money-saving option. However, there are pros and cons to consider before making a purchase.


  • Cars with high mileage are often priced lower than newer ones, and you may save a considerable amount of money on the purchase price.
  • If the car was well-maintained, it may still have many miles left in it, and you can enjoy a reliable vehicle for years to come.
  • Some automakers are known for producing high-quality cars that last well beyond 100,000 miles, making them a great choice for used car shoppers.


  • Cars with high mileage may require more frequent maintenance and repairs, which can lead to higher ownership costs in the long run.
  • If the car was not well-maintained, it may have several hidden issues that can be costly to repair.
  • Some automakers are known for producing cars that are not built to last beyond a certain mileage or age, and buying a high-mileage car from one of these manufacturers can be risky.

Signs It’s Time to Sell or Trade-In Your High Mileage Car

While a car with high mileage can be a reliable and cost-effective option, there comes a time when keeping the car is no longer the best strategy. Here are some signs that it might be time to sell or trade-in your high mileage car:

  • The car needs frequent expensive repairs and maintenance.
  • The car’s overall condition is deteriorating, making it unsafe or uncomfortable to drive.
  • You’re spending more money in fuel costs compared to a newer, more fuel-efficient vehicle.
  • The cost of keeping the car on the road is higher than its resale or trade-in value.

In conclusion, 100,000 miles is not necessarily a bad number for a car, but it is a good time to take stock of its condition and consider its future maintenance needs. By following a strict maintenance schedule and being vigilant about any issues that arise, you can keep your high-mileage vehicle running smoothly for many years to come.

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