Everyone has their own choice of oil, and their personal reasons to use what they do. The point being, as far as I know, I've never heard of a F6B failing because of "bad choice of oil". So, apparently, they all work.
Everyone has their own choice of oil, and their personal reasons to use what they do. The point being, as far as I know, I've never heard of a F6B failing because of "bad choice of oil". So, apparently, they all work.