Quote:
Originally Posted by Spooler
It depends on the oil. Amsoil usually gets to that point faster when the oil is cooler. Just a thought. ...
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Yeah. Probably varies a bit between types/brands and what engine they are used in.
My guess is that the boiling point of water has more to do with the experts' figures than shear strength or other parameter (most graphs aren't very steep once the oil gets over 180F or so). I've seen 212F/100C used more than once. BPoW may just be a convenient reference point. Maybe it's to make sure any water gets boiled off. All I know is what I read on the Intertubes.