Quote:
Originally Posted by harris69
72k miles and I have not had valve cover, or OFHG replaced and it wasn't leaking when I had the oil changed 3k miles ago. This is another reason I like to do 5k oil changes instead of 17k (or whatever BMW recommends on 2011 535i).
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Please elaborate. How does more frequent change affect or preserve the gaskets? Is it the quality breakdown of oil over a longer time that leads to the leaks in some way?
Thanks!