I m surprised to that most engine oils are not fit to run in a motorcycle bcoz here in pakistan we have motorcyle with wet clutch plates means the clutch is in oil and these famous oils that u have told me they have a thing called friction control and when this oil is put in a wet plate system engine this can damage ur clutch very badly..
Now for that expert sugest to always get Jaso Ma certified oil these are japanese standard and these are fit to run in motorcycle and in paksitan only shell advance 4 stroke oil have this feature its a jaso Ma plus its design for wet clutch plate engines..
Now all this is confusing i was reading some where that only oils below sw10-30 have friction control..
Anyone of u know some thing about this please give ur views..
Hows shell helix advance oil ?