kozal01

iTrader: (2)

3 psi a week? where are you getting that info? if thats the case how is it possible that i can store my ranger every winter for 4-5 months at a time and not lose any of the crappy free air in my tires? with that logic they would be flat by the end of winter. also ive never seen any tires crack from the inside either. i will stick to my free 78% nitrogen air

shotgun

Basic physics: Gasses do not 'move' from low pressure to high pressure.

pig9r

If there is such a worry with the inside of the tire rotting because of exposure to regular air, then what about the outside of the tire?

Do any tire manufacturers recommend nitrogen?

All Hat No Cattle

If they do not, it is because tire manufacturers have little interest in making your tires last longer.

Dealers that warranty the tires they sell against most failures, like Costco, have a vested interest in keeping your tires inflated properly.

Look, if you check your tire pressure once a month or more, and don't mind dragging out your air bottle to top the tires off, then continue to do so.

But, if you don't check your tires regularly, then it is costing you MPG, excess tire wear and shortened tire longevity. That is not up for debate.

http://www.nhtsa.dot.gov/cars/rules/.../brochure.html

http://www.tiresafety.com/maintenance.asp

pig9r

Well that's real safe. Put nitrogen in and you don't have to check your air pressure regularly?

I purchase tires from Costco, not because they put nitrogen in the tires but because they have the best price and offer free rotation and balance.

Conspiracy theories aside, I have not seen any tire manufacturers that recommend nitrogen over just plain air for passenger or truck tires.

rbig18

I can say this. My 08 Lexus is flashing lights at me that the tires are low now that the weather is in the 30's in parts of Texas. My 09 Fx4 is right on target. I did not realize it came with with anything but air but it if it did I am happy with the results. Lexus is more work, but in truth it is just adding air.

shotgun

IMHO, the issue is getting the moisture (from standard compressed air) OUT OF THE TIRE.

As we all know, most (larger) compressor systems have a drain valve to drain condensate out of the tank (some are even automatic). Our tires/wheels don't have a way to drain the condensate. Each time we add compressed air, we add MORE condensate.

My truck came from the dealer with nitrogen (free). I asked him to inflate the tires to 40 PSI (yes, it's a little high, but IMHO the truck handles better when I'm towing). I bought the truck in June (90-95 degree weather). Night temps are now in the upper 20s, low 30s. I checked my pressure (last Saturday at 35 degree air temp) and it hasn't dropped AT ALL in 6 months.

Again, this is all IMHO and YMMV.

kyle7

your lexus has nitrogen in it too. same amount as in your truck... 78% actually because thats the approximate value of nitrogen in the air we breathe.

CrashTECH

This is getting insane. Who has EVER had a problem with the moisture inside your tires? That doesn't even make sense! There just isn't that much water vapor in the air, period. Nitrogen likely won't hurt your tires but I have serious doubts that it will save them or provide you any mythical benefits. Especially considering plain old air is pretty much Nitrogen anyway. You aren't changing much about the make up of the air in the tires.

manic5_2001

moisture in your tires really????? I live in the south and with all the humidity down here I have NEVER had an issue with this....... NO one in my family has either in the 40+ years my uncle that owns a farm and works out of his truck every day. I pull the gimmick card and laugh that anyone can be taken in by this.