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I read in the owners manual that my WRX needs Subaru Anti-Freeze which is Ethylene Glycol (green).


It also states you must not mix it with other ethylene glycol anti-freeze???


So question is, with a second hand car you can tell your car has Subaru Anti-Freeze in it cos its green looking fluid, but surely then you can just mix any other green ethylene glycol anti-freeze into the radiator reservoir 50/50 for the desired protection? Or am I missing something? Is Subaru anti-freeze a specific type?


Comments and Feedback appreciated. :)

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Not really but as a rule you shouldn't mix great quantities of different coolants, best off just flushing the system and making up a new batch.

Subaru stuff shouldn't be any different just costs more from om the dealer

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