What is penetrating oil spray? Poke around in any mechanic's garage for long enough and you'll find a can of the stuff. Penetrating oil spray is an essential tool for rust removal. Applying the ...

I asked my friend. “You need a can of Angry Farmer,” he said. “It’s the best penetrating oil I’ve ever found. It’s made by a guy just up the road in Martinsburg.” Need a break?