oil type

• An HTHS viscosity between 2.9 and 3.2 cP (API FA-4) • An HTHS equal to or greater than 3.5 cP (API CK-4) API FA-4 oils with lower HTHS will offer potential increased fuel efficiency, but would be restricted to newer engines designed to run on these lower HTHS viscosity oils. This may exclude many older engines found in existing fleets. Engine manufacturers are evaluating their hardware to see if engine durability, especially for ring and liner scuffing, is an issue with low HTHS viscosity oils. Taking advantage of these new oils would enable companies to meet new US Environmental Protection Agency and National Highway Traffic Safety Administration requirements.

In fact, he showed, as oil makers often agree (not those who buy refined oil and then market it under their name, but the big boys) that additives added later, once you put the oil in, can make wear WORSE. It's always best to use oil that already has the additives. He did several wear tests that proved some of the favorite additives actually increased wear - because to be best it needs to be blended with the oil during other processing, not in your engine.

However, the fear-mongers still persist and argue - even though science has shown, WEAR testing has shown, there's little to worry about - for one thing, the oil companies saw all of this coming decades ago and had a huge customer base with cams like ours and had to keep their cars alive. 
By the way, it's NOT the zinc in ZDDP that did the work - too bad people keep saying "you need zinc". Nope, sorry, the zinc just happened to be part of the formula. Zinc had nothing to do with it - except the side-effects to the CATS. 

Unfortunately, the way the WEB works, it's so easy to read and copy what one sees and paste it in your own site, and then another comes along and copies and pastes that, and so on, that when you do searches, you keep getting the same old tired info over and over - and no matter how many times it's repeated, that doesn't make it more true - so you have to dig past the first few pages of search results to get to the good stuff, the REAL scientific WEAR tests with various oils and additives, and the engineering perspective. 

My Javelin 390 was done more than ten bloody years ago, with a COMP XTREME cam (radical ramps) and the cam to this day still looks like new, as do the lifters (I've swapped intakes a few times and each time I check just so I can tell how good it looks - and be honest about it)

My 73 Javelin 360 has a non-stock cam in it, it's built more for performance, and I've had the intake off of it and yeah, I checked cam and lifters, several thousand miles, HARD runs and I mean HARD, and a month over ten years, cam and lifters look great.
My Eagle was done several years ago and over 30K miles ago and I beat on it, it's got a COMP xtreme 4x4 cam - again, radical ramps and it sounds like a truck engine because the lifters are shoved up and dropped back down fast so the valve are full open pretty quick and close quick at the last moment and it's doing fine with Mobil 1 oil. 
I don't run any additives in any of my cars.