AND to add a point of safety to his point of safety
:
The same goes for rags soaked with ANY type of oil or grease. Not sure if peanut oil will do it. But guess what? If you treat the peanut oil soaked rag the same as a rag soaked in 10W30, you'll get in the good habit of properly containing ALL oily rags (kinda like the "treat all steel as if it were hot steel" mentality).
-Aaron @ the SCF