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Bridgestone/Firestone North American Tire – The leading tire manufacturer provides real, science-based answers regarding the use of nitrogen to inflate tires.
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Ford Motor Company – A study presented by Ford researchers at a meeting of the American Chemical Society’s Rubber Division in 2004 finds that nitrogen significantly slows or even halts changes in rubber properties of tires.
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Probe Forensic and Testing Laboratory – Researchers at the El Paso, Texas, laboratory conducted experiments involving new and used tires running more than 7 million miles. They conclude that nitrogen in tires helps them hold pressure longer, decreases oxidation and extends tire life.
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Air Products – The leading manufacturer of membranes for nitrogen generators explains why oxygen migrates out of tires more quickly than nitrogen and why nitrogen does not expand and contract as much as air.
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Amalgamated Bulk (PTY) LTD - A letter reporting the use of nitrogen has been a great success in thier operation.
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Gas Permeation Speed Table -
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Goodyear Tire - Goodyear supports the use of nitrogen, as an inflation gas, in all Goodyear, Dunlop, Kelly, Associate Brand and Private Brand products, based on the ability for a tire to retain pressure for a longer period of time.
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Michelin - MAST approves the use of nitrogen as the inflation gas for all Michelin, BFGoodrich, Uniroyal, and P/A branded tires and will continue to warranty our products with the use of nitrogen.
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University of Bologna - Research showing that a tyre inflated with de-oxygenated air loses pressure at half the speed of a tyre inflated with air.
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Graham’s Law Explantion - Are nitrogen molecules really larger than oxygen molecures? The correct answer, with respect to “permeation”, is yes. This document explores the subject in detail, and explains the difference between effusion and permeation.
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Miles you drive
per year
Cost to replace a tire
Average gas price ($/G)
MPG of your vehicle
 
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