I am ignorant when it comes to understanding the true importance of the ad packs and base oils in the new CK-4 formulations. I have the mindset of “more is better” when it comes to zinc and phosphorus, boron, and moly, but honestly, I couldn’t tell you benefit of one over the other. The only reason I mention this is due to the recent reduction in zinc and phosphorus in Chevron DELO 5w-40 synthetic, which is the oil I currently use. Are VOA’s truly important to the uneducated consumer such as I, or should I blindly trust the spec of CK-4 and go off wear rates?