Why is having lots of miles on a car bad, and what is the point of miles?
In: Engineering
As an engine runs, it slowly deteriorates. Mileage tells you roughly how much wear and tear an engine has been through, and therefore roughly how much life is left in the vehicle.
Average use is considered about 12,000 miles a year. So if you buy a car that’s 3 years old that has 36,000 miles on it, you know it’s been driven fairly normally. If you look at a 3 year old car with 72,000 miles on it, you can tell it’s been driven twice as much as average, so technically the engine is 6 “average” years old.
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