product descriptionLegacy TH0402 36 psi Gas Saver Low Air Pressure Indicating Tire Valve Cap
Legacy Gas Saver Low Air Pressure Indicating Tire Valve Caps.
The gas saver cap visually indicates when your vehicle's tire pressure is low by change colors .
Green indicator means you are good and when the PSI gets below 31 the color disappears.
Operating with lower PSI can result in 20% higher fuel consumption as well as increased tire wear.
They are for light trucks and SUVs with a tire pressure of 36 PSI.