Question: how much mileage on a used car is too much?
Answer: One rule of thumb to keep in mind, especially when looking at reports like Carfax or AutoCheck, is that 15,000 miles per year is considered to be the industry average. Therefore, if you're looking at a vehicle that is ten years old, it's not unreasonable for it to have 100,000 to 150,000 miles on it.