I have tried a few different things for coolant in my bandsaw. First I tryed watered down blue windseild washer fluid, it worked great but made the saw rusty. Than I tried mixing a little oil with it and it cooled well yet but didn't seam like enought to keep the saw from getting rusty. Lastly I tried strait ATF fluid which worked great for not making rust but it is to much lubricant and makes the blade slip on the wheel.
I know you can buy a coolant but I hear a couple different stories of it being expensive and it will start to stink after awhile.
So what do you guys use for coolant? Any good working home made suff that doesn't start to stink, doesn't make the saw rust, and doesn't make the saw slip?
I just never used the coolant because I was cutting small stuff or tubing which never had the need for coolant. But lately I have been cutting bigger and bigger stock and more repetitively and it would be nice to be able to use coolant if the need arises.