New Quaker State Oil w/ Zinc

@Dannyd
I spent 32 years in the automotive lube business. I just counted eight untrue statements in your two posts. I don't have time to go through them one by one. But that's OK, I'm not going to try to change what you believe, just try to help you get you what you want.

Quaker State has mostly moved on from obsolete products. I wrote to their tech email address when they introduced the All Mileage oil a year and a half ago. I asked the about the zinc and phosphorous content. They didn't reply.

From what you say, this is what you want. Or as close as you're going to get at a reasonable price. Good luck! :thumbsup:
[URL][URL]https://www.walmart.com/i...-50-Conventional-Motor-Oil-5-Quarts/751818585[/URL][/URL]
Not only is it a big deal for us old performance engines to have the old Pennsylvania mineral style crude but it's a big deal to have the detergents. I looked at All Mileage I know it's a blend. And I'm no expert you know that but I've studied about 40 hours the last couple weeks about viscosities. I'm now know I'm looking for conventional with detergent and it's hard to find because most of conventional now is like a blend. It's a blend and it's got additives for seals and stuff which I don't trust.
Someone had a bad experience with Quaker while I didn't. We all know most of oil companies have been bought out so now Quaker is not the Pennsylvania green mineral crude oil. I sure wish I could get a hold of Nunzi but he's way retired in Brooklyn NY.