I'm quite surprised to hear so many of you don't use MX4T/Racing 4T. It is what Triumph recommends(kick back from Mobil I'm sure) and is easy to get. I did my first oil change using the dealers oil/filter( in case I have any immediate warranty issues) and figured to do the rest myself using the Racing 4T from my local Auto Zone. I know oil is soft subject, but what is the deal?