My engine builder is adament that i use
oil like Brad Penn, something with extra Zink and Phosforus in it. I have heard of the additive you can add but i know that isnt nearly as good as factory made. I just became a dealer for Klotz and i need to change my
oil in my car and this Klotz
oil looks even better than the Brad Penn because Klotz is fully
synthetic and not semi. What are your thoughts on this?