Nitrogen is one of the fastest growing upgrades among passenger vehicles on the road today. It has some key characteristics that set it aside from regular compressed oxygen normally used in tires.
Nitrogen is a dry gas, which means it is free of moisture. Regular oxygen naturally contains moisture, which causes damage to your rims and tires. Moisture deteriorates the inner walls of the rubber on your tires, which weakens them over time. Moisture also corrodes the inner portion of rims, along with expensive tire pressure monitoring sensors.
Nitrogen molecules are larger than oxygen molecules. This makes it harder for nitrogen to leak out of the rim/tire Nitrogen molecules are not affected by temperature the same way oxygen is. When the outside temperature drops, so does the overall PSI of your oxygen inflated tires. When there is a temperature drop and nitrogen is present it maintains its exact pressure.
With all of your tires always operating at their desired pressure setting it gives your vehicle its best performance. Equal pressure throughout all four tires results in, improved fuel mileage, along with better braking & handling.
Nitrogen has been used for decades by; NASCAR, Space Shuttles, Military & Commercial Aircraft, The Tour De France.