Ferrari AGIP Sint 2000 10w50 replacement for catalyst cars

Probably the closet is M1 15w-50 and much more available to me than a 5w50. Frankenbrews won't be happening. Most don't give the numbers people think they give just mixing bottles. Again, without guessing, I'm looking for actual experience with synthetic 50 or 60 wt oils that will still not punish a catalytic converter to death.
Mobil 1 15-50 is not high zinc anymore.
Like other sport car makers, Ferrari probably advised to use 50 weights because before the 90's, mandatory HTHS for 5W-40 and 10W-40 was only of 2.9 (like 5W-30), while Mandatory minimum HTHS for 15W-40, 20W-40, and upper weights was 3.5.
Since then, VII have largely improved.
Since 1994, according to API, bottom HTHS is 3.5 for any 40 weight.
Today, any Euro 5W-30 will have this 3.5 HTHS. 10W-40's HTHS is in 3.7~4.0 range, any 50 weight is far above 4.0.
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When it became SN rated here in the US.

Did you even bother to look at the link I posted multiple times? From ExxonMobil themselves, not a random guy on the internet, it’s SN and 1300 ppm of zinc and this is as of the month this thread started.

This forum is frustrating as hell sometimes. You really have to wade through a ton of BS.