Is it true that if I have radiator fluid in my oil the oil will appear milky, and that I will be able to tell right away? I have heared of these labs that test oil, and can tell if you have radiator fluid in your oil like Blackstonelabs.com. Or is this going overbord?
when you have coolant in your oil, its easy to tell. like you said, white milky goo would be settleing on bottom.
Just get some used oil in cup, and add water to it, and give it the few days...
Remove the filler cap,if there's water in the oil it will show up under the filler cap.Don't panic though,short drives can cause this to happen also.Drain the oil into a clean pan.If there's water in the oil it will show itself when you empty the oil slowly into a disposal container.Depending on the amount of water it could show up as small beads to quite a large quantity of water that has separated from the oil.