The short answer
You don't need to trade before 100,000 miles just because of the number. It can make sense if a large scheduled service is coming, the model has known age-related problems, or you were planning to replace soon anyway and want to sell while buyers still value it more.
What changes near 100,000 miles
- Some models have scheduled services around this range — for example spark plugs, fluids or timing components. Check your owner's manual.
- Wear items like suspension parts, brakes and batteries are more likely to be due.
- Some buyers and dealers value cars above 100,000 miles lower, which can reduce trade offers.
What doesn't automatically change
A well-maintained car doesn't become unreliable at a specific odometer reading. How the car was maintained, how it was driven and the model's reliability record tell you far more than the number itself.
A hypothetical example
Common mistakes
- Replacing a reliable car purely because of a round number.
- Assuming trade value drops sharply at exactly 100,000 — the effect varies by model and market.
- Skipping due maintenance to "save it for the next owner," which lowers value.
When keeping makes sense
- Service records are solid and the model ages well.
- You plan to drive it for years, not months.
When trading early makes sense
- A costly service is imminent and you were already planning to replace.
- You want to maximize resale on a car you're done with.
Compare keeping it past 100k with replacing
Carvest's repair and maintenance model scales with your car's age and mileage over the next 36 months.
Compare My CarsCarvest provides estimates and decision-support information. Actual vehicle values, financing, insurance, repair costs and ownership expenses can vary.