So long story short, most plastics, includging PETG, will most likely be compatible with glycol based antifreeze. PG based antifreeze may or may not be better then EG ones, but I have no reason to suspect it would be worse. No guarantees, but that’s the indication of the available information.
To be on the safe side I would do visual checks at least every 6 mo to verify there is no significant color change or part swelling.
Also sorry not sorry for the dramatic clickbait title.
Thank you for all the help by the way. And yes I plan on posting it here, I apologize sometimes I’m bad about doing quick Twitter posts from my phone versus sitting down and typing out something more long form for the forum. I need to get better about that. It really should probably be here first and then out on Twitter maybe draw in some eyeballs.
But I’ll admit I’m self-conscious about posting “work in process” stuff here, only because when I put it here it feels more finalized and formal like I need to have it better and figured out. I need to work on changing that mindset and use this more of a build log for posting. I take a lot of pride in what I post here, and I don’t want to be wrong or make mistakes, that feels more like Twitter is ephemeral nature. When it’s here it’s gospel
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