Quote:
Originally Posted by Marrk
Some argue that the moly is from lube that is used in assembling the engine and has not much to do with break-in per se.
The only thing we know for sure is that some manufacturers, like Honda, advise in the Owner's Manuals of their vehicles not to change the factory oil until the first service (usually 7,500 miles). My question is: Why? Is it because the factory oil is special in some way? Is it because the factory does not want some eager beaver new owner to swap in fully synthetic oil too early in the life of the engine?
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Agreed. Seems to be the question of the decade. I got all of my information about that on bobistheoilguy.com forums, don't know if you've already spent time there, but you usually can find some good info on that site - they seem to think it's unique.
And like DSR2409 said, it may very well be synthetic. On the latest Hondas it's actually recommended to change the oil when the car tells you to, which happens to be closer to 10,000 miles, actually. At the forum I mentioned above, people have tested the oil at several intervals and determined that the oil is about done right around ~7,500 miles....just like Marrk stated.