- Oct 17, 1999
- 8,883
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So when my Subaru needed coolant, I read up and discovered that import vehicles tend to need phosphates in their coolant to preserve aluminum parts and that silicates will corrode the aluminum but OTOH American cars need the silicates. So this got me wondering because last I knew there was a ratio of mixing water and a little antifreeze and water wetter with maybe some bromine to keep algae at bay but what type of antifreeze do they need?