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Re: What kind of oil to use in '04 Rockster?

Posted: Sat Jul 04, 2009 10:55 am
by Biff's R
I am currently using Mobil 1 15w 50, but have used Castrol Syntec 5W50 in the past. I will switch back to the Castrol because the bike warms up quicker in the winter, and starts easier.

Re: What kind of oil to use in '04 Rockster?

Posted: Sun Jul 05, 2009 8:08 pm
by MattPie
Racegun wrote:all info is real good. No one has mentioned Royal Purple. http://www.royalpurple.com.
Nor has anyone mentioned Spectro (http://www.spectro-oils.com/). A long-time BMW mechanic I know likes it, and uses it for his bikes and the bikes he works on.