Use any oil with a JASO FC or FD rating, its on the back of the pack.
4 ltr packs work out cheaper than little 1ltr packs.
NEVER use cheap lawn mower oil or outboard oil, your engine wont thank you for it, good oil is important if you spend a lot of time on the motorway.
If you really keen, learn to check the colour of your spark plug it tells you alot of what is going on with your engine.
Make sure the plug is checked at every service those Indian engines can go lean.
"Your talent determines what you can do. Your motivation determines how much you are willing to do. Your attitude determines how well you do it."
-Lou Holtz
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