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I live in the rust belt, where the average life expectancy of a car is about 10 years. 12-15 if you _really_ baby it. Except for one car that was totaled (got rear-ended by a texter), all of the cars I no longer own succumbed to a rotted out frame. Engines were fine, bodies were fine, interiors were fine.

But a frame. Can't really replace a frame. You can _sometimes_ repair it. You can buy some time by paying for an oil-based undercoating every year, but finding someone who will do it affordably _and_ do a good job is hard. (It's a messy, annoying job.)

I sort of want congress to mandate stainless steel or aluminum frames in all cars sold in the US, and I don't even care if it makes the cars cost more. It won't happen via state laws because the auto manufacturers are big campaign donors around here.



> I live in the rust belt, where the average life expectancy of a car is about 10 years.

Are you saying the "rust belt" region of the US, named for its history of steel manufacturing, is an area where cars rust more? Cars rust more where salt is used to deice roads. Salted roads overlap with the rust belt, but they are not related.


I’ve had the same experience.

I’ve started buying high mileage cars that are roughly 2 years old. Essentially off lease vehicles, but more likely some sort of corporate vehicle.

Rust is by far my biggest enemy. I’ve never had an engine or transmission go. Really haven’t even had any major components go either.

But rust, rust just kills everything under the car.


What passenger vehicles made in the last 25 years have body on frame construction? Serious question. I thought that went away a long time ago.


The secret is to paint it and apply rubber coating, when it is new. It is DIY territory.

Paint alone will chip due to gravel and start rusting away.


IIRC some Audis have aluminum frames




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