The SuperTech Asian Blue coolant shows to be in stock at the Apple Valley, CA WalMart. The Toyota Red coolant is the same chemistry with a different dye.
The latest Subaru stuff is 2-EHA now, made by Prestone, someone posted a label here. Toyota just calls for any hybrid technology coolant. The concern is 2-EHA attacks silicone. However, RTV fails with Toyota OE coolants as well. So I’m of the opinion 2-EHA doesn’t hurt but should be avoided if possible.
BMW has used 2eha in their blue coolant for a long time. Haven't seen eaten away gaskets mostly just blown out plastic since they think cooling systems need 30psi