45K miles and no issues.
I read a series in American Iron magazine where they sent samples of the most popular V-Twin oils in to an independent laboratory, and Mobil 1 performed best in the tests they had done. I don't remember the specifics, but it was a pretty detailed series of articles.
this was ten years or longer ago, so things may have changed, but I've used nothing but Mobil 1 in my bike since.
