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What's harder on a car, age or mileage
The problem is the first one, a '95 T-Bird with a 4.6L motor, while it runs good, has nearly 216,000 miles on it. I'm not 100% faithful in a car that's been driven that far.
So, I bought an '82 Mercury Grand Marquis last summer with a 5.0, and only (at the time) 41,000 miles. Since then, I've had to replace front brake calipers (one froze up), front brake line (one ruptured) the muffles, the dsitributor cap, rotor, plugs and wires (all looked vintage 1982), the A/C doesn't work, the heater core went out, and she leaks power steering fluid (Sometimes barely a drip, sometime a hemmorage). I figured with a low mileage car, I could buy it cheap, and put a lot of miles on it. However, if she's gonna be nickle-and-diming me to death for the next 100,000 miles, I don't want to keep her.
On the other hand, if the 216,000 mile T-Bird is a time bomb waiting to go off at that mileage, I don't want to keep her. So, generally speaking, what would require less maintainence, a newer, higher mileage car, or an older, lower mileage car?