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Join Date: Nov 2007
Location: Chandler, Arizona
Since it takes so little, and doesn't have to be changed that often, I always just used Kawasaki shaft drive oil. Also, I would never use anything below 10w40 in a motorcycle engine, it just doesn't have enough load bearing ability to protect the bearings. It should be fine down below 0 degrees. I live in AZ, and 40 degrees is about as cold as it gets here, but it reaches above 120 during the looooong summer. I won't use anything but 20w50. I have used both regular and synthetic. I prefer regular oil, and change it often. I often use Lucas non synthetic, because it is what I use in my race car, and I just buy some extra. IMO it is about the best non synthetic you can get, it is rated for engines up to 2000 HP. It lasts a lot longer in the bike than it does in the race car. And it costs almost as much as synthetic. Good old Castrol GTX is as good as anything else in the Vulcan, just change it often, at least every 2000 miles.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike