[Retired Rev]

Not really a specific Fiat question, but when my TPM went off yesterday (I think due to the first day the temp has been below 50 since I bought the car) I wanted to go immediately to get nitrogen in my tires. Will wait until I see a copon somewhere, unless of course the light comes on again.

 

[SnapTrack]

Fill it with regular air. Air is over 70% nitrogen. Paying for nitrogen is not needed

 

[Mvander]

Not really a specific Fiat question, but when my TPM went off yesterday (I think due to the first day the temp has been below 50 since I bought the car) I wanted to go immediately to get nitrogen in my tires. Will wait until I see a copon somewhere, unless of course the light comes on again.

The nitrogen will react to temp changes less, and will leak less due to being a larger molocule.

 

[RobR]

I never had a car with TPM and even though I know I have it now it was neat to see it come up and tell me I need to check my front left tire pressure. Today my wifes 500, which is about a week old, engine light came on with a message indicating to get an engine check. That wasn't so neat.

 

[Mr. Abarth]

Highly recommended. Reducing the moisture in the tire is of paramount importance, especially so with TPM sensors.

 

[Bladecutter]

Quick question, before I throw down my response to this topic:

How much of a pressure drop do you believe there is between a tire filled with air vs one filled with nitrogen?

Here's the best response I could find on the internet on this topic:

http://news.consumerreports.org/cars/2007/10/tires-nitrogen-.html

And they even created a Q&A FAQ for this topic:

http://news.consumerreports.org/cars/2007/10/nitrogen-tires-.html

And I will quote TireRack for my final comment:

Nitrogen is a gas and is still affected by changes in ambient temperature (about one psi for every 10° Fahrenheit). Nitrogen filled tires will require pressure be added during the fall/winter months as ambient temperatures and tire pressures drop. Nitrogen is good but can't change the laws of physics.

BC.