Quote:
Originally Posted by Luftwaffel
I'm not saying you can't use another phosphate/non-amine coolant. I'm saying that for obvious reasons I trust their own coolant with their own blend of corrosion inhibitors (which is proprietary information) far more with their own engine.
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Fair enough but the reason toyota carry the blue as well as the pink stuff is to do with the blue formulation being silicate free for the subaru engines.