I just got a set of 2008 OEM Rims w/Bridgestone Potenza RE050A. Since the Tire Pressure Sensor doesn't work with the new tires I checked the tire pressure and they are around 31psi.

However I noticed that the valve stem caps were green with a logo. When I went to get a closer look it said "Nitrogen". So I called the previous owner, he told me that the tires came filled with Nitrogen when he purchased his Z.

Now the problem is that the closes facility with Nitrogen is more than 25 miles away from my house. However doing research I found out that I can use regular air. This is kind of stupid if the dealers are not going to have Nitrogen to refill your tires.

Are the 2008 Z owners having this issue with their Nitrogen filled tires?

 

Huh?

What's your point? Are you asking if Nissan dealerships should all be using nitrogen when filling tires?

--Spike

 

Most places that sell tires also have nitrogen - it's becoming pretty common. Call around and you'll find somebody.

 

Whenever I had my alignment done, they asked if I wanted nitrogen in the tires. What's the advantage of this?

 

fill it with air and keep the nifty caps on and nobody including yourself will ever know the difference.

seriously the difference is so negligible its retarded, especially if you live in a dry climate

 

I didn't know 07 and 08's came with nitrogen

 

My 07 didn't come with it.

 

Neither did mine. Maybe it's an 08 thing but you would think we woudl ahve found out earlier than this

 

I already did!

NOPE you need to read my original post again; the point is why any car manufacture put Nitrogen on the tires if the dealership won't be able to supply it to the customers. Plus it cost way more than regular air. This is just another way to get money out of the consumer pockets.

 

^^ I guess I'm lucky since the tire dealer I use doesn't charge any more for a nitrogen fill. ...Or, saying it differently, I don't get a discount for plain air vs. nitrogen.

What is the co$t/price difference between the two fills (nitrogen vs. plain air)?

--Spike

 

Nitrogen filled tires will be less susceptible to changes in PSI due to weather variances. You will notice that in colder temp PSI will drop and the opposite for hot.

 

+10000


Its actually not much of a difference at all, if you were to fill one side of the car with air and the other nitrogen you may be able to tell. The only difference is you wallet WILL BE LIGHTER

 

Amazing!

 

About $10.

 

Can u mix air with the nitrogen?

 

Don't! That'll cause a huge explosion!

 

True, which is why we use Nitrogen on aircraft tires, and other things that hold a pneumatic charge. The other plus to Nitrogen (base on the type being use) there is no or little moisture in it.

Lies, air consists mostly of nitrogen and oxygen. Now Don't mix Pure Oxygen with Oil, that would caues a huge explosion.

 

If you want to cause an accident of cataclysmic proportions sure.

 

Actually it it perfectually acceptable for us to use dried and filtered air in aircraft parts. The moisture is the big part, we don't want the extra stuff in there to cause corrosion.

Unless your roadracing (not just trackdays) you don't need nitrogen fills.

Poor mans version if you must for the street, got a water seperator for your home compresser.

 

FAA FAR 25 as it pertains to aircraft tires states that any plane with a WCTOW of 75,000 lbs or over is required to use nitrogen or some other inert gas only on braked wheels by which the oxygen content does not exceed 5%. The gas and the tires inner liner material when heated cannot make a comustible mixture.

It's basically stating nitrogen is only required in extreme conditions and then only to prevent the fascilitation of combustion inside the tire leading to an explosive failure. Do you need it in your street car? No way! There is no benefit whatsoever except a slight reduction in lost pressure through the tire wall. Is it worth $5 per tire? No Way!