so i got new yoko geolander 315/70/17's and i nitrogen filled them at the shop i work at. is anyone else running nitrogen in there tires? if so do you notice any difference?

I don't think you're ever going to notice a difference. The idea is that pure nitrogen is inert and doesn't have water vapor in it, so it's not going to degrade the tire compounds or the rim (rust or other oxides).

Is it worth it? Sure, if it's available. But if you need to top off at home, I wouldn't hesitate to use an air compressor. The worst part is air contains oxygen and water vapor, but we've be using air for over a 100 years now so it's known to work.

While popular and easy to obtain, CO2 is often used. Unfortunately, it isn't inert. Maybe somebody who has used it a lot can give us their experiences.

There is less temp change when using nitrogen

I run it in my car and I have not really noticed anything. Don't have to check tire pressures as often and tire wear is better.

Food for thought.

Consumer Reports (http://blogs.consumerreports.org/cars/2007/10/tires-nitrogen-.html?resultPageIndex=1&resultIndex=2&searchTerm=nitrogen)

Modern Tire Dealer (http://www.moderntiredealer.com/Article/Story/2008/02/Nitrogen-marketing-101/Page/1.aspx)

If you deflate the tire, inflate with nitrogen completely, then repeat that 3x you have a good nitrogen fill. The tire pressure stays within +/-2 psi of what you filled it at. If you just deflate and fill with nitrogen once it wont do you much. You want to expel as much atmospheric air in the tire as you can. I always run it. I have the K sized nitrogen tanks in my garage and its only $8 per tank and each tank will do roughly 30 inflations if I remember correctly. Best bet is to get yourself a nitrogen tank preferably 300 cubic feet size and a regulator some hose and fittings and do it yourself. Dont pay the dealer $30 to do it.

i had nitrogen put in my wifes 07 benz @ da dealership n it made no difference in mpg's or tire wear. so i wouldnt buy that s*** again :(

I have it in my fifth wheels tires as we speak. It is too soon to tell,if ever, if there is a difference. It should help maintain tire pressure better. I always air check them before we roll, so time will tell on that. It also should keep a more constant pressure in them. The nitrogen molecule is larger than an oxygen molecule. That is why they lose less pressure. But with that being said, ambient air is something like 75% nitrogen anyways. I get the nitorgen for free so I will run it at that price. The tire shop here has a nitrogen generator and they hook me up.

I'm running it. I bought my own tank though. I heard places charge like $10 a tire to fill( if you can find a place that has it that is) Tire pressure only changes -/+ 2LBS. I use it because I put DYNABEADS in my tires (no tire weights) and Nitrogen is recommended because if the beads get any water on them they will clump together and the end result is you will be unbalanced and have wasted your $$$

Nitrogen is used because it has a few advantages. The tire pressure will vary less as the tires heat up or cool down (think winter versus summer, or 80 mph vs in town driving). The tire will loose less pressure over time because Nitrogen gas will leak at a slower rate. Nitrogen is inert as oposed to compressed air, less likely to oxidize the inside of tires, wheels, and pressure sensors.

Remember, "air" is about 70%-80% Nitrogen anyway.

It will not improve your fuel mileage versus an appropriately filled "air" filled tire. It won't prevent blowouts. It won't make your truck faster, haul more, look better....etc.


It will significantly lighten your wallet.


Nitrogen seperators are becoming more available to service shops, and therefore, service people will be overcharging the unknowing and underinformed public. They will make promises that are complete BS, and people will swear it makes a difference.

Maybe in the 24 hours of LeMans at 160 mph, but not around town.

. . .
Is it worth it? Sure, if it's available. But if you need to top off at home, I wouldn't hesitate to use an air compressor.
. . .

Ooops, I meant to say "if it's free (like Costco) or really cheap".

I put having straight nitrogen in your tires in same category as clocking your spark plugs.Small benefit that just isnt worth trouble or expense on normal use cars.If it gets filled up for free..fine,but Im not paying extra for it.My compressor has filters on it so no water vapor in my tires anyway.

Question. My dealer put new tires on my truck yesterday, and after I left, the tire monitor said my rear tires have 84 lbs in them, 67 in the front. I have always dropped my tire pressure when not pulling my trailer, to keep from runnining the centers off the tires. Can I deflate the tires as I normally would, then air back up? I'm assuming I'll be loosing nitrogen and simply replacing with air doing so.

just adjust your pressures as you normally would. that is the main reason I have not done nitrogen in my truck.

I just finished a 2,766 mile trip from Anaheim CA to San Antonio TX, to pick up a 1954 Buick Super, I pull a 30' Featherlite car trailer. I had new tires installed on the truck and the trailer tires changed to Nitrogen. The reason why was the desert heat, I did not want to chance a blowout.

The trip was trouble free, I may have been fine with air, but who knows.... I believe in the "Pay me now or pay me later" saying. I would rather pay a little now then chance damage from a blowout.

The biggest advantage we have seen in the racing world has been the constant volume over the period of a run. Our tire temperatures run around 250 degress on a 10" wide slick tire, 2800 lb car. With normal air, we would see about 15 psi increase over a run of about 50 laps. With Nitrogen, our build up would be right around 5 psi for the run. Anything we can do to make the car more consistent is worth every penny.

Passenger cars wont see a fraction of that temperature, maybe 40 degrees above ambient, but not much more. With the race car wheels we arent concerned over oxidation, so cant comment on that. Also the molecule size is proven so, there is some weight behind that. A nice joke going around the racing circles was to inflate the tires with helium to make it lighter :)

For the cost, its not worth it on a passenger car or truck.

If I didnt change air pressure all the time I would use nitrogen or if I had my own nitrogen setup I would use it.

Going on the dirt I almost always drop the pressure.

Just drove about 200 miles this morning. I have Nitrogen in my tires. When I started out my Fronts were at 62lbs, Rears at 75lbs. The outside temp was 71. When I got home my tire pressure had increased about 9 degrees all the way around, the rears had 84lbs and the outside temp was 81. I must say Im not impressed with the Nitro, and glad I didnt pay for it. I'll be dropping my tire pressure back down, and replacing with air next time I hook to my trailer.

its all hype to help sell tires!

I just finished a 2,766 mile trip from Anaheim CA to San Antonio TX, to pick up a 1954 Buick Super, I pull a 30' Featherlite car trailer. I had new tires installed on the truck and the trailer tires changed to Nitrogen. The reason why was the desert heat, I did not want to chance a blowout.

The trip was trouble free, I may have been fine with air, but who knows.... I believe in the "Pay me now or pay me later" saying. I would rather pay a little now then chance damage from a blowout.

I believe in that saying as well, but to a certain extent and Nitrogen filled tires is not one of them. I bet you have those magnets inline with your fuel line that suppose to extend your fuel mileage by 50%