I am in northern Arizona on the White Mountain range... We had a freeze in Taylor, Az. A couple days ago, I removed the front drain and oil filter and drained the remaining oil which turned out to be about 4 quarts. The oil reservoir was already empty and I assumed the typical o-ring leaks was the problem, but just today, I walked out to the bike after buying new synthetic oil and (Costa COF6607) filter only to see another puddle under the bike. probably the last bit of oil. I have not yet cleared around the bike again to lay down and look underneath the engine/transmission, but this is gnawing at me quite a bit. I looked at the oil which drained out for signs of coolant, and it appeared to be overly dirty even though it was changed less than 1500 miles ago.