What is your opinion of putting purer N2 into tires (as opposed to compressed air)?
Posted Jan 24th by Emma Thomas the owner of a Toyota Echo
Answers from the Automotive Experts
Nitrogen inflation for passenger vehicles has been debated for the past several years, and while there are many who claim it is much better than ordinary compressed air, these claims have yet to be 100% proven.
〉 Answered on Jan 24th, 2008 by Denise Koeth, Managing Editor at Tire Review Magazine
Tires inflated with nitrogen will hold tire pressure longer, which means better traction, safer operation and reduced risk of tire failure due to over-heated tires.
In addition, tires inflated with nitrogen reduce fuel consumption as proper tire pressure improves rolling resistance; this results in improved gas mileage.
Finally, nitrogen-inflation extends tire life. Properly inflated tires run at cooler temperatures and last longer. Tires inflated with nitrogen can last as much as 25% longer than tires inflated with air.
Inflating a tire with Nitrogen is safer to use. Mass transportation companies fill their tires with N2 for added fire and explosion safety. Nitrogen has been used in tires for many years on aircraft, military vehicles, off road trucks, and race cars.
According to representatives that sell nitrogen, filling your tires with nitrogen will significantly increase your gas mileage. As a technician, I have not found any proof of a significant change in mpg. To get the best performance out of your vehicle, make sure your air filter is clean and your tire pressures are all at spec. Don
〉 Answered on Jan 24th, 2008 by Suzanne Grego, Technician at City of Philadelphia Fleet Management