David Stroud Ottawa Canada IM Roadster posted:So no zinc required for a flat tappet engine ? What a relief ! Thank you Todd for this timely confirmation.
Hold on there Tex. Let's not be hasty.
It's probably best to consult a chemistry connoisseur before creating a conundrum with your car. All the conflicting condemnations can conflate your cognition if you're not careful. It's best to concentrate on the considerations we find ourselves contemplating.