If you’re a PC and you want to try this oil out go for it. It does have the specs I mentioned earlier in this thread.
However, if you’d like, you could try Mobil 1 0w40, Castrol 0w40 and even Pennzoil Platnium Euro 5w40 if they’re available to you and they will be cheaper than the amsoil as well since the M1 and Castrol you can get from Walmart for a dirt cheap price (God bless America...).
I have never used Amsoil since it’s way to expensive for me (Toronto) and I don’t want to be a preferred member to get a good price. Is Amsoil a good oil? No, it’s a great oil for extended intervals and it has shown itself to be stout but so have M1, PP and Castrol.
With the above being said above, I’d keep changes to 10k intervals and use a quality oil filter (Wix or Fram ultra) as well. I know you said your temps rarely drop below 10 so you shouldn’t have an issue with start up with the oils I listed. That all being said, I would say try out a 5w30 weight oil first, see how you like it, or if you just don’t want to and want a HTHS rating of 3.5 + then stick with the 5w40/0w40 with the 229.5/A40/LL01 spec.
As others have sad the Magnatec should work well as would M1 EP and PP ultra (5w30 grades for all and they should have a HTHS of 2.9 -3.1).