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You have to buy Amsoil product from an authorized dealer. I used to buy the engine cleaner for my old truck. It worked great. The only way it would pass emmissions.
just bought mine on Saturday. They put syn in the Primary and the Tranny. 20w50 in the crankcase. Thats just for break in. I will change to Syn 3 at 1,000.
I rode 5000 mi last summer, much of it in over 100 deg. heat with the same 20W50 in all three. No ill effects, shifts smoooooth. Took it apart in the winter to do a 95 in. All looked good.
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.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
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.