Pennzoils HM oil also contains moly, although not as much as Maxlife. It's flash point and pour
point aren't as favorable. I think the Quaker State HM oil is supposed to be almost identical to
Pennzoil (Johnny can answer this for sure)
The new Castrol GTX HM oil does not contain moly, but uses tons of calcium instead.
I do believe Maxlife has the best basestock out of all the HM oils. My oil analysis on the SJ
rated Maxlife (with 2.3k) should be in this week, then I'm trying out the SL Maxlife for 5k.
I'm not sure but I think Maxlife might be the only one that adds esters to their high mileage
formula too. I switched my Firebird over from Mobil 1 to this stuff, that's how highly I think of
it. And I started using Mobil 1 back in 1988 too, and almost exclusively since then. (other than
a short time using Castrol XLR on one car, and Amsoil for a couple of years when I was a
dealer)