Quote:
Originally Posted by matt30
I don't know what this proves other than it's possible. If you wanted some kind of scientific test you would have to compare engines that have 200k+ miles on them.
From an engineering prospective, the damage is negligible. Honestly. I'm not the kind of guy that spreads misinformation. The more people know about how their cars work, the better.
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Is that why manufacturers (you know, the guys with the scores of engineers working for them) recommend leaving in the factory fill until it is time for the first scheduled oil change?
Factory fill oils usually have specifically formulated compositions designed for the break-in process. Though it is true that the first oil change will yield considerable metal shavings, there is a reason manufacturers don't tell you to get your oil changed as soon as the "break-in" period is over. It is in their best interests to maintain the longevity of their engines since they are the ones on the hook for the powertrain warranty.