Hi ddgrasse
I don't know..maybe I'm kind of anal about the stuff. But I put it in EVERYtire/tube,I've got. I mean it sure can't hurt anything,in my mind. Just make sure you inform anyone working on your tires that it's in there. Because it's kind of nasty stuff if/when is comes blowing out of the valve stem,etc

and kind of gunks up the tube and/or inner tire walls.