I am with Tom (tcv) on this one, Amsoil or Mobil 1.
Why take the chance?
Someone mentioned using a diesel oil - that is probably a big no-no. Diesel oils have additives installed to neutralize the high sulfer content and inhibit the formation of soot deposits. Some of these additives may play havoc with a wet clutch and even form deposits in an air cooled gasoline engine.
And being the cynical s o b that I am, I wouldn't believe everything I read on a manufacturer's web site, or in a magazine.
I'm sticking with Amsoil. Sometimes a bargain ain't no bargain.
