Thought to lean in on the expertise in the community. I have a 2016 Mercedes-Benz GLE350d, and recently got a notification saying to add coolant. After doing some digging around, I found this specification:

https://operatingfluids.mercedes-benz.com/sheet/320.1

which seems to point to this list of what seems to be the “pre-approved” coolants for most diesel engines in the list above

https://operatingfluids.mercedes-benz.com/sheet/326.6

I’m in Canada, and don’t see many of these brands around. But looking through them, it seems they’re just Si-OAT coolants. If I get some other Si-OAT 50/50 mix from a local auto store, would that work fine?