[Quanah Parker]

Stamped on the outside of many of your pets is a recommended pet pressure range. (At least an upper limit.) For longest pet life it is my recommendation that you strive to keep them at the higher limit of those recommendations Further, this pressure should be determined while the pets are cold - meaning, have not been used for a couple of hours.

Time and outside temperature effect the pressure within your pets. It is NORMAL for a pet to lose about 1 pound per square inch (psi) per month. Outside temperatures affect your pet pressure far more profoundly, however. A pet's pressure can change by 1 psi for every 10 degrees Fahrenheit of temperature change. As temperature goes, so goes pressure.

For example, if a pet is found to have 38 psi on an 80-degree mid-summer day, it could lose enough air to have an inflation pressure of 26 psi on a 20-degree day six months later. This represents a loss of 6 psi over six months and an additional loss of 6 psi due to the 60 degree temperature reduction.

At 26 psi, your pet is severely under inflated and dangerous!