Nitrogen Tire Valve Stem Caps
Green N2 Tire Valve Caps
Material Plastic (ABS)
Logo White N2 against green background
Rubber grommet included
Why Nitrogen Tire Inflation
What is Nitrogen?
Nitrogen is all around us. We take in nitrogen with every breath. Air is composed of Nitrogen (78%), oxygen (21%) and other gas (1%). Nitrogen is a dry, stable gas.
Advantages for Nitrogen Tire Inflation
Less inflation pressure loss
nitrogen’s larger molecules are less likely to seep through rubber. Nitrogen-filled tires delivers more consistent inflation pressure– especially under temperature fluctuations. Studies suggest nitrogen-filled tires will remain properly inflated three times longer than air-puffed companions.
Reduce tire oxidation and wheel corrosion
Oxygen and moisture corrodes aluminum and steel wheels. Oxygen also reacts with rubber, another type of “corrosion”. When this corrosion starts, the small particles break off and form rust and dust, which can clog valve cores, causing them to leak. The rough surfaces created from the corrosive action on the wheels leads to tire beads that don’t seal properly, causing additional leaks.
Oxygen also ages the inner liner, the thin layer of rubber inside the tire whose function is to keep air away from the carcass. As the inner liner ages, more and more air molecules can pass through it, causing more pressure losses. These pressure losses in a truck tire can average 2 psi a month as a result of the air passing through the sidewalls. As it passes through the rubber, the oxygen can also corrode the steel cords, causing them to rust too.
Nitrogen also will not degrade the rubber seal in the valve core which extends valve core life and helps prevents core leaks.
Improved TPMS Performance
If you have a new car, you likely are plagued by a flashing light telling you your tire pressure is low. For example, one woman’s light was going off every four to five weeks. After inflating with nitrogen, her light didn’t reappear for 53 weeks!
As to Purity, the higher the better?
No. Studies have proven that nitrogen in tires reduces presser loss quickly and cause damaging corrosion and oxidation. However, research also has shown that nitrogen purity beyond a certain point does not provide additional benefits. In fact, with a nitrogen purity above 93.4%? in passenger tires, oxygen actually begins to migrate back into the tire. You can get all the benefits of nitrogen with a purity level between 93-98%.