High mileage engines
Discussion
Hi guys,
Occasionally, you hear about cars that have done a million miles and sometimes you hear talk of particular engines being durable.
What I can't get my head around is what makes an engine more durable than another one? How would an iron block engine be more durable than an aluminium one? I get they can handle bigger pressures, but surely they've been designed to handle a specific power output, so if they only ever operate to within those power figures, it wouldn't make a difference whether the block is aluminium or iron?
Or is it just a case of other stuff on the car failing before the engine? As in, an otherwise healthy engine being hampered by being stuck in a car which has a whole heap of other issues deeming the car to be scrapped/abandoned.
Occasionally, you hear about cars that have done a million miles and sometimes you hear talk of particular engines being durable.
What I can't get my head around is what makes an engine more durable than another one? How would an iron block engine be more durable than an aluminium one? I get they can handle bigger pressures, but surely they've been designed to handle a specific power output, so if they only ever operate to within those power figures, it wouldn't make a difference whether the block is aluminium or iron?
Or is it just a case of other stuff on the car failing before the engine? As in, an otherwise healthy engine being hampered by being stuck in a car which has a whole heap of other issues deeming the car to be scrapped/abandoned.
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