I have recently been thinking of running an OCI of M1's 15w-50 oil in my Shadow which is a liquid-cooled twin. I know Harley Davidson engines and most air-cooled engines call for a 50 weight but would it do any harm to my liquid-cooled engine other than reduce fuel economy? The reason I ask is because I know motorcycles have a tendency to shear oils very badly and since Honda recommends a 40 weight oil, if I start out at 50 and it shears to a 40, I'll still be within spec.
Is this particular oil from M1 energy conserving? If it is, that will immediately answer my question. I cannot seem to find out it is or not from their website.
Is this particular oil from M1 energy conserving? If it is, that will immediately answer my question. I cannot seem to find out it is or not from their website.