How to evaluate when is best timing to change your car.?

With high gas price, aging car consume more gasoline, and maintenance cost getting higher with aging.



but new car is with high depreciation for the first several years, thanks to new technology most of cars save more energy.



When is the best timing to change your old car into a new one?

5,7 or 10 years?

How to evaluate when is best timing to change your car.?
i dont think theres a specific amount of time, its just whenever your maintenance bills exceed your payment.



that can range anywhere from 6-20 years, depending on what model, make and how well you take care of your car, and how much you drive it.How to evaluate when is best timing to change your car.?
that depend of the conditions and millage of the car