Synthetic at the first oil change and no problems yet, not burning oil and no leaks, 45K on the bike now. HD SE bikes come with synthetic from the factory & there are many car manufactures that put synthetic oil in their vehicles from day one. The old myth that you should not change to synthetic until the engine breaks in is a MYTH. Go to synthetic as soon as possible because it will handle the heat produced by the TC engines.
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08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.