Brad Penn?

[65Fury440]

Everything you want to know about oil and more.
I'm running Pennzoil synthetic in all my old stuff.
https://540ratblog.wordpress.com/

This engineer tests oil, and addresses the zinc issue, and what function zinc actually has. Most zinc additives actually dilute the lubricating properties of oil. It's well worth the read, but long.

 

[furyus 67]

I'll give it read tonight. Work today yay! Thanks!