Nitrogen tyre inflation is becoming common practice. Using nitrogen rather than air has advantage.This is not a new idea. The United States military, airplanes and car have all been using this technology for years. The idea is just new to consumers. Advantages Better MPG.Nitrogen filled tyres bleed pressure slower than compressed air. Properly maintained tyre pressure is essential for tire wear and gas mileage. A low tyre does not always look under-inflated Longer tyre life.A properly inflated tyre wears slower. If a nitrogen filled tyre does not lose pressure as quickly you can expect longer tyre life. Oxidation is blocked.Oxygen causes oxidation. Oxidation can make rubber brittle, increasing the chance of a blow-out. Nitrogen in the tyre blocks the oxidation of the internal rubber Nitrogen is a green alternative.Nitrogen has the potential of being greener for the world. As nitrogen-filled tyres maintain proper pressure, achieving better gas mileage, reduced emissions and longer tyre life, the demand for tyres could decrease. This means fewer manufactured tyres, decreasing the use for natural resources. Also, manufacturers would decrease shipments of tyres, which of course helps the environment.