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Being that Syn3 isn't the best synthetic oil out there, I would change the oil when you take delivery of your new bike and fill all 3 holes with Amsoil. That's what I did! Amsoil is much better than Syn3 and doesn't cost as much as Syn3 either.
We carry Amsoil and use it in all the bikes we service for our local customers. It makes your bike run so much smoother and keeps the engine temp cooler and that is especially helpful when idling on a hot day at traffic lights. The other great thing about Amsoil is how well it protects your engine. Amsoil guarantees protection of your engine for 15,000 miles or 1 year, so you can extend your service intervals if need be or for those cross-country type trips.
Shawn
Last edited by DR. V-TWIN; Sep 6, 2009 at 11:20 AM.
Knowing what I know now, if I was to purchase a new bike with Synthetic oil already in the engine, I would remove it and replace it with petroleum (before leaving the dealer) for the break-in period. Either the rings will fully seat, or not fully seat in less then 50 miles.
While having my 96" bumped up to a 103" (by Doc1 and he agrees with this information) I did some research on break-in. Here's a right-up (post 32) on what I found.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
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Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.