Agreed, the owner/operator manual is very vague on the maintenance intervals, and the info is spread throughout the manual instead of being condensed into a traditional table format. Another thing to note is that you need to refer to the online manuals as the de-facto reference, and NOT the printed version that came with the bike. You can find the updated manuals here:
http://www.operatorsguides.brp.com/Index.aspx Click on the top-left menu and select "Roadster", and then drill down from there.
My shop agreed that the 6000 interval listed in the manual is a little bizarre. I always change the oil in my new bikes long before the first "official" interval... usually around 300-800 miles, depending on the engine type. After that, it's every 3K for larger motors, and 1.5-2K for smaller motors.
I sent mine back to the dealer to have the sway bar installed, and I asked them to go ahead and do the first oil change at ~600 miles. I will return at 3000 and then every 3K for the next few changes (while under warranty). After that, I will be doing all of the maintenance at 3K intervals.
One thing to note about the oil changes. My Rally stunk of burning oil like crazy after its first change. I took it back to the dealer the following day and asked them to fix my stinky bike. Apparently, the tray under the motor can catch a LOT of oil spillage during the maintenance, and mine had almost a half-quart or more slinging around under there. The tech that did my service didn't realize that there was a lot in there, and it was blowing up onto the manifold and lower engine case... smoking and stinking like crazy. They had to pull the lower tray and completely degrease everything under there. It still stinks after another 600 miles, but it's tolerable.
Here is the breakdown of the oil service parts and fees:
$ 3.59 420552280 O-RING
$ 2.59 420950141 RING-SEALING
$14.39 420956123 FILTER-OIL
$41.36 779133 OIL 4T 5W40 SYNTH BLEND QT (x4)
$ 9.99 420230920 O-RING
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$71.92 Parts total
$74.80 0.8 hr SHOP LABOR
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$146.72 TOTAL
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QM