23 M1, just over 2k miles, oil changed to full synthetic at 1k miles. Sometimes I hear it, sometimes I don't. Just wondering out of curiosity if that's what this is or if it's something I should be worried about. Any feedback is greatly appreciated.
Still needing a Mach 1 for prototyping? I'm in Louisville and will be taking mine up to Indy for PPF in the near future, definitely interested in these.