You can get Mobil 1 4t motorcycle oil at most autoparts stores.
it is available in 10-40 and 20-50 .
20-50 is what should be used in air cooled bikes like ours.
I was going to pick some up today but the Autozone was out of the 20-50.
So I went up the street and got the Amsoil I have used in the past.
the mobile 1 was 7.99 a quart and the Amsoil was 6.55 , I think I will stick with the Amsoil.
