Quote:
Originally Posted by StanF18
a well-maintained engine is NOT the rate-limiting factor on a 3.0i's "life expectancy".
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It eventually could be if you keep replacing parts. I have changed a ton of parts on my e36, which now has 294,000 miles. All new cooling system, driveshaft, differential, motor mounts, control arm bushings, Bilsteins and many other misc. parts. I keep replacing them becuase the engine is still strong. If it wasn't, it wouldn't be worth it to me. Now I know that the X5 is a much more complicated and expensive car than my e36, but some people may keep throwing new parts at a high mileage model if the engine is still running well.