I keep a can of fix-a-flat in my truck at all times. No matter what goes through my tires fix-a-flat works perfectly everytime. I pulled out a wire hanger out of my rear tire on my Z. By the next job it was completly flat, I used the fix-a-flat and it was just like new. I can remember using a least three other cans on the same tire. Does anyone else know what a time saver fix-a-flat is!