Stop-A-Flat will maximize the life of your tires by helping to maintain proper air pressure during the life of the tire. However, do not neglect proper tire maintenance as tire pressures and tire wear should be checked on a monthly basis. It is a fact that under inflated tires will have a shorter life span than properly inflated tires. Tires that are 10% under inflated will lose about 10% of their life, tires that are 20% underinflated will lose about 25% of their life, tires that are 30% under inflated will lose about 50% of their life and tires that are 40% under inflated will lose about 65% of their life. Thus, proper inflation is critical to tire life expectancy. Stop-A-Flat helps to maintain proper inflation and thus adds life to your tires. We have had customers report up to 25% more miles per set of tires with the use of Stop-A-Flat.