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My indie and chief PCA instructor here in AZ recommended distilled water and water wetter. I initially disagreed with him about the reduced boiling temp compared to 50/50 mix but it is true that it extracts heat better. I think that the coolant system pressure elevates the boiling point of water so 220F is fine. I live in AZ so it doesn't affect me too much. Also what THSTONE said about loosing coolant on the track... that makes sense to me if you track your car a lot. I do wonder however about the anti corrosion properties of the antifreeze...
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2002 Boxster S - NHP 200 Cell Headers,test pipes,Borla CatBack,Competition Plenum,74 mm TB, EVOMS Tune,Tarett UDP,Eibach Swaybars,BIlstein PSS9s,TuneRS rear toe links,wheel studs,15 mm wheel spacers on all 4,EBC yellow stuff pads,Sebro rotors, EBS oil baffles,160 deg Thermostat,2 quart Accusump,full filtration remote oil filter,rad fan switch,custom gauge/switch plate, Race Capture data logging, 90K miles
Last edited by AZ986S; 11-14-2017 at 05:56 PM.
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