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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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#17 |
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Distilled water has a low pH. Water by nature tries to seek a balanced pH and when distilled water is put next to aluminum, it'll leach the minerals it wants from the alloy. This causes build up and soot in the radiator tubes.
If you use an "aluminum safe" antifreeze, you'll be ok as it has silicates in it on purpose to act as sacrificial mineral deposits. |
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