14 years ago
This is northern Illinois, so temperatures of 0 to -5F are not
uncommon. How can I make soluble oil (20 or 30:1 ratio) a little bit
more freeze proof. Is there something that I can add to it, like
ethylene glycol, without the risk of ruining the pump, seals,
bearings, or anything else. My garage is attached, so it rarely gets
below freezing, but when that happens, I do not want to be caught.