Not only has this stuff saved me tons of time when I've been stuck with minor damage (like punctures), it has also saved me from having to pull my car in for a long weekend in the snow Lake Tahoe after side damage. I simply pumped the specified amount into the tire, pumped it up, drove slowly through the lot until the condo was provisionally repaired, and then was able to drive home, stopping every 50 miles to replenish some lost PSIs. Not a permanent replacement, but saved $$$ on towing. Put one in the back of the car.