When I just can't figure out which product to use in my vehicles, wheather it's ATF or Coolant, I use the dealer fluid as much as I hate doing it. At least until I decide which brand fluid(s) that I trust. I'm still confused on the Coolant.
I have an '04 Altima 2.5 S using Peak any makes/models.
Been using Toyota Red in the wifes Lexus
And Peak Global Lifetime in the daughters Mazda 3.
In the past, I have used any coolant in any vehicle including brass and aluminum ratiators, aluminum and cast iron engines, without any issues...EVER! And I have owned my vehicles well into their teens w/ many hundred thousand miles on em'.
The only vehicles that I or my circle of friends/family have ever had cooling system issues with were the engines that were "known" to have issues anyway!!! Such as head gasket issues and IM gasket issues(GM 3.1/3.4 V6), Chrysler(2.2/2.5 4cyl), Ford (3.0/3.8Vulcan's). Even when using the correct coolants...Otherwise, nada! OH, I guess any car company can have an issue but, there are the notorious ones.
So, I'm still not sure about the coolant thingy. If the engine is built correctly using good/tested gasket material, you'll not have any issues. I mention gaskets because they are the main problem more so than other cooling system parts such as water pumps, heater coars, radiators, and thermostats. But, then there are the know gasket eaters on the market. I hope they're all gone now!
As-far-as ATF's go...I think that there is tons of info here about using Universal ATF's with good succuss without any extra friction modifiers(i.e. LubeGard HFM). Such as MaxLife ATF, Castrol IMV ATF etc. And then there are the well known Synthetic ATF's from Amsoil, RedLine etc.