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Compressed air - the traditional medium for tire inflation - contains both nitrogen and oxygen molecules. A tire is essentially a rubber membrane through which these molecules permeate. Unfortunately, oxygen leaks up to four times faster than nitrogen. Oxygen also oxidizes the rubber compounds in tires, causing deterioration from the inside out. Regular compressed air is also typically prone to condensation, foreign particulates, and other contaminants. Once inside a tire, these can cause further deterioration to the rubber compounds, rim, and valve stem core. If all this leakage, oxidation, and deterioration goes unchecked, underinflation occurs, creating a host of problems such as excessive tire wear, reduced gas mileage, or worse... the risk of dangerous blow-outs. Government and industry studies suggest roughly 60 percent of tire blowouts are caused by under-inflated tires. When you consider that an estimated four of every five vehicles on the road today are riding on under-inflated tires, there's danger all around us. Why use nitrogen? Nitrogen is the clean, inert gas that comprises 78 percent of the air we breathe. Not only is nitrogen abundantly available, it's also a safe, more beneficial alternative to regular compressed air. Nitrogen makes tires perform better, last longer, and function with a greater degree of safety than tires inflated with regular compressed air.
Even with nitrogen in your tires, it's still important to check your tire pressure periodically. So, the next time you pull in for routine service, have your tires checked and re-inflated or topped off with nitrogen. It's a very simple, accessible, and affordable process that pays dividends in terms of enhanced safety, better fuel economy, and longer tire life.
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