As Irwin said, that is not Fix a Flat in the Xfire trunk. Just an air compressor & tire slime.

Two weeks after I bought my Xfire, on our first road venture, I hit a pothole, cracking & bending the RR rim. It was about 1/2" from the tire - beat the rim back with a big hammer to where it was close, and that stuff pumped the tire up ( Front was also bent, just not as bad and didn't lose air).

The rest of the story is that this was in the mountains of NC, Friday evening, getting dark & no cell phone coverage. I had basically railed against that compressor & tire slime, but MB has a pretty good system that worked and we were able to wobble our way home.

Of couirse, a real tire would have been better.