2 replies to this topic

[Rvinyl]

There's a thread on Gearhead Central about using N2 in your tires. Supposedly there is evidence that it reduces deflation from seepage and can give you a 1% gain on MPG overall. The claim is that the N2 is larger than O2 but just looking at the Period Table you see that N has a weight of 7 and O has a weight of 8. These gases are diatomic so that means N2 weighs in at 14 and molecular oxygen at 16.From the weights at leat it seems that oxygen might be the bigger molecule so it should seep less. Then again it's been awhile so there may be more to this than meets the eye (think VSEPR theory). Thoughts anyone?

 

[CitizenSnipz]

At my dealership we put nitrogen in the tires of all of our cars. I can't say anything with regards to seepage, but I have noticed that nitrogen does result in a lot less "low tire" warnings once cold weather hits.

[Sampak]

At my dealership we put nitrogen in the tires of all of our cars. I can't say anything with regards to seepage, but I have noticed that nitrogen does result in a lot less "low tire" warnings once cold weather hits.

 

Ditto at Don Davis Nissan -- when I bought my '09 coupe they mentioned nitrogen in the tires. Something about being lighter and overall better. I still got a TPMS warning light once or twice when the weather changed over night but nothing repetitive. First and last car with TMPS + Nitrogen that I'm aware of, so I can't say if it was better or not in any aspect.