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Old 09-25-2013, 04:23 AM   #9 (permalink)
jeff88
Lots of Questions
 
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Any reason why I couldn't use propylene glycol instead of EG? It doesn't have as low of a freezing point, but I don't really have to worry about that in this weather! Is there another reason why I wouldn't want to use it?

Also as a side note, why do we not use oil as a coolant? (I know that the engine oil does help with cooling, but I'm not talking about that). Couldn't one use a really thin, maybe 0w-10, oil in a coolant loop? I would think (and read) oil is a better vehicle for heat pick-up and removal.
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