Just curious.
Was doing a summer OCI of conventional 15w40 because my engine is too old to care and I'm a cheap son of a gun, but can't be bothered to consult the crystal ball to try and guess ambient temps during the next OCI anymore. Once my stock of conventional is gone it'll get 0w40/5w40 year round and I'll be done with conventional entirely.
Was doing a summer OCI of conventional 15w40 because my engine is too old to care and I'm a cheap son of a gun, but can't be bothered to consult the crystal ball to try and guess ambient temps during the next OCI anymore. Once my stock of conventional is gone it'll get 0w40/5w40 year round and I'll be done with conventional entirely.