Quote:
Originally Posted by Duke2.6
The aux. electric fans engage at high speed at 105C coolant temp. and disengage at 100C. In addition they are activated at low speed by the AC system high pressure switch if not already running at high speed based on coolant temp.
The OE cooling system is very effective, and I think you're better off fixing any problems with it rather than cooking up a home brew solution.
Maximum antifreeze concentration should not exceed 70 percent and 50 percent provides freeze protection down to about -35 F and boilover protection to about 265F with a 15 psi cap while having more than adequate corrosion protection additive concentration.
Water has greater heat capacity than glycol, which is why running over 70 percent glycol is not recommended.
Duke
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It's 80% water 20% coolant. The cooling system is working and had no issues, it's just that during summers here and using the ac the temp really climbs up if idling or in slow traffic. Actually, now I'm back to 50/50, but after thinking about it, I just realized that the fans switching on at 80°C is irrelevant anyways because there's no coolant even flowing through my radiator at that temp. Thermostat opens up at 87°C anyways, right? I sent mxfrank a pm to get info on the thermoswitch he's talking about.