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These are simply Lies.
Just like Windmills and Solar - they said they would pay themselves off in 10 yrs - the actual records are nothing remotely like that - and Windmills chop up birds 24 hrs a day.
On the very best cars, you would have axle issues at that mileage.
This is a PR campaign, nothing more.
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“On the very best cars, you would have axle issues at that mileage.”
I ran up over 380,000 miles on a 1997 Lumina LS and NEVER ONCE needed to service any downstream drive line components other than the brakes.
Dummies at GM built an iron block then put an aluminum intake manifold on it, and thought it’d stay leak free with single layer gaskets. So those got replaced at 180,000 with a FelPro aftermarket multi-layer design that I never had to deal with, again.
I paid $14,250 cash for the car in October of ‘97 and let it go last year for $1500. It was needing the engine rebuilt, and the interior was showing every one of those 24 years of wear. Had I the inclination, I could have spruced it up for $3000 to $5000 and kept it going for another 200,000; the condition of the interior actually became the deciding factor, as those are the parts that are hardest to get and/or the most ridiculously expensive. Like — hello — a slide out, in dash cup holder for $300? It’s less expensive to get OERepro parts for my classic Chevy, for cryin’ out loud!