Can I add oil additives to a yz400f or will it be bad for it
No. Good, top tier oils don't need any, for one thing, and for another, most of them do more bad stuff than good. A lot of them are metallic (metals like calcium) and that can end up embedded in the carbon on the piston crown, which can produce "hot spots" that can pre-ignite the fuel. Any kind of friction reducers have the potential to cause clutch problems.
You need to be a member in order to leave a comment
Sign up for a new account in our community. It's easy!
Already have an account? Sign in here.