I put the LT away in mid-December with fresh BMW synthetic oil/filter and the LT has been sitting in the garage since then. Because of other commitments, I won't be taking the LT out to start my riding season until the end of March. Does synthetic oil develop acidity like dino oil, in such a short time? I don't mind replacing the synthetic with the same oil if necessary, but if it's not an issue, I'll change it after riding 3K which shouldn't take long. TIA.