I liked the amsoil 20-50 better than the HD oil,but am using penzoil 20-50 now,If you need heavier oil you could use Red Line 25-60. Those heavy straight weights are ok if the cold start temperatures are 60-80 degrees F , but they don't lubricate well at these colder temps as the motors are designed for multi-grade use.

 

Thanks GSXR, ILL keep using the Valvoline Race oil.

 

RedLine 20/60 all year.

 

Zinc is definitely your ( and your scooters ) friend.

 

Hmmmm, an oil thread where nobody got their panties in a wad....must be the end of the forum as we know it.......

 

Na! It's a shovel era thing really, doesn't concern us Evo owners......