L322 Anti Freeze
I've just changed the thermostat on a 4.4 vogue SE 2004. Which anti freeze do I use to refill her up. I've Bought Si-OAT in pink. I had the choice of a pure OAT anti freeze or the Si-OAT i bought.
Question: Which should I use and can I mix them as I'me sure what's in the engine is OAT.
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There is a yellow mix made by Prestone, it is supposed to work with either.