[Dwight]

Coach Mike, Doc and I were cruising down the Interstate and he ran over a small board with a nail in it. He felt the rear tire going flat, quickly pulled over and we filled the tire with flat fix. Ten minutes and we were on our way. Drove 10 miles to the next exit and found a tire dealer to plug the tire. Then drove to Wal Mart and bought 3 more cans of flat fix. I have two in my travel bag in the trunk. I have 21,000 miles on my Cobra and no flats. Stay out of the loose gravel and off the edge of the road. Nuts, bolts, screws, nails, small pieces of metal and other tire puncturing objects get pushed into these areas.
I think there are two types of flat fix and one is not as corrosive to the rim.
Some times it better to use the flat fix and get out of there quickly. You can always get the tire dealer to remove the tire and clean the mess out for $10 or $20 later.
Dwight