A warning about Evans Waterless Coolants

sgaugian said

By far the Evans runs much cooler and my needle never goes over half way even idling for 1/2 in the driveway (Drops lower under driving conditions) . As I said before I can take the cap off while it has been running there for 1/2 hours and the cap comes right off no burned hands.

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Understood.
What I saw said "The heads run hotter with Evans" and "The one chemical builds up on aluminum creating a heat transfer barrier".
I don't run, or plan to run aluminum heads or an aluminum radiator either one so that part doesn't matter in my case.
But you can bet I'd like to know for sure about the heads running hotter because that part does matter to me.
I don't want to end up having to run premium gas just to have Evans coolant.

So even though your system runs cooler overall, it doesn't answer the concern about higher head temps specifically.

I'm not saying the stuff I read was right, but that if it is right then I have a problem with using it.
It would benefit others to know if that is the case also if they are on the edge of needing better fuel already, as an increase in heads temp could cause detonation on the lower grade fuel they currently are able to run.