Dear fellow Vic riders , This info which I conjured up from my own experience this Sunday when I changed my oil for the second time, is what I find factual based solely on my bike, although lots of you have the exact same driveline as I. My first oil change was at 596 miles , my second, after given advice on this forum that I could most likely go 5000 mi. between changes, and I believe the owners manual states 5000 miles per, BUT , I decided to change it at 3600 mi. I only use the Victory oil change kit. The oil I drained out was black, and the consistency of water, I did warm up bike for about a 5 mi. ride , after seeing the oil I'm glad as hell I didn't wait for 5000 . My point , after a new filter and fresh Vic oil, my bike is noticeably quieter , less valve train clacking mostly , shifts smoother, and runs Better. Never in my opinion , would I wait until the 5000 mile mark, I don't care if it cost 200.00 to change the oil after seeing what my 106 did to that oil, 3000 is tops for me. Maybe when this has 10 to 15 thou on it and is well broken in , things will be different , but I don't know....