I've had some hard [Meguiars] wax sitting around for about a year. I've used about half of it. It's the kind in the small circular can, with the applicator. It's been in a air conditioned room the whole time. It doesn't look any different (a little dry around the edges), but as a whole it's still soft.

Would this be OK to use up on the G, or should I just throw it out and go get a new one? I just didn't know if wax had a shelf life...