Inflating tyres with dry nitrogen

[n_aditya]

MSM at Chennai is offering customers nitrogen filling in their car tires for 30 bucks per tire. Saw this a month back when I gave my car for service.

[diwa]

MRF Tyre Dome on cathedral Road, Chennai offers Nitrogen filling at Rs 40/- per tyre. When filling Nitrogen for the first time they deflate your tyre completely before filling Nitrogen. Rs 10/- per tyre for a top up.

[Rehaan]

Originally Posted by Nikhilb2008

...It doesnt deflate as easily and as quickly as normal air. Please dont ask me why! I dont know....

I think this is why >>

Originally Posted by Rehaan

...
I guess the main advantage of nitrogen in tires is that it does not permeate through the tire as easily as the other gasses in air, hence you tire pressure doesnt drop as quickly as it might normally....
...

Now you know.

cya
R

[vezj420]

This may have been mentioned before on this thread, but Shiva Enterprises in front of MS Ramaiah Hospital/Med. College in Bangalore also does have nitrogen filling.

Got nitrogen filled for my new tyres there and am surprised that they havent lost pressure at all in almost a month, despite some hard pothole hits.

I would still say that 6 months is too long a time to go without having to get pressure checked though...the gentleman at Shiva Ent. recommended every 2 months.

[headers]

Originally Posted by vezj420

Got nitrogen filled for my new tyres there and am surprised that they havent lost pressure at all in almost a month, despite some hard pothole hits.

I would still say that 6 months is too long a time to go without having to get pressure checked though...

Boss, I check once in 6 months and find 1 PSI max change in one of the wheels. I frequent the highway every other day and some real bad village roads too.

What suits you should be fine..You could check every month, then 2, 4 or 6 whichever suits you.

I found 6 months convenient though!

[vasudeva]

Normal ordinary tyre pressure should be checked every 2-4 weeks and costs Rs. 2. Nitrogen tyre filling costs Rs. 40/tyre for what advantage (check every 8 weeks). Nitrogen tyre filling is just nitrogen `hot air'.

[tsk1979]

Agree with Vasudeva here. Check air every 4 weeks and save 120rs minimum
Ordinary tires are rated to run at 190kmph on ordinary air. Nitrogen may let them run safely at 250kmph. Big deal. So unless your daily run includes running at 250kmph on 190kmph rates tires, its a waste of money

[vasudeva]

In Oct 2007, Consumer Reports conducted a study to find out if nitrogen is worth the price. The test was: fill and set the inflation pressure at room temperature to 30 psi; set the tire outdoors for one year; and then recheck the inflation pressure at room temperature after a one year period.

The results showed that nitrogen does reduce pressure loss over time, but the reduction is only a 1.3 psi difference from air-filled tires. The average loss of air-filled tires was just 3.5 psi from the initial 30 pressure setting. Nitrogen-filled tires lost an average of 2.2 psi from the initial 30 psi setting. More important, all tires lost air pressure regardless of the inflation medium, so consumers should check their tires' air pressure routinely. No evaluation was done to assess the aging claim.

Bottom line: Overall, consumers can use nitrogen and might enjoy the slight improvement in air retention provided, but it's not a substitute for regular inflation checks.

Tires - Nitrogen air loss study: Consumer Reports Cars Blog

There were some comments on this, and so CR posted a FAQ on this here:

Nitrogen in tires - Q&A: Consumer Reports Cars Blog

[tsk1979]

Forget consumer reports. I went to US, and pumped up indica tires to 33PSI.
When I came back the pressure was 29-31PSI in the tires.
This was after more than 2 months.
Ordinary air, full of moisture content(filled during rainy season)

[anupmathur]

When a bunk claims it is filling Nitrogen, is it not worth finding out the purity of the Nitrogen being offered, as also the moisture content?
Compressed air is also, after all, almost 80% nitrogen.
The problem of pressure variation, with temperature, is mostly due to the moisture in the air.

[headers]

Guys, we are just comparing dry nitrogen filling with normal air filling. Let us not ridicule that Nitrogen is a waste etc.

What suits you should be fine for you, but dont fail to recognise something better.

[anupmathur]

Originally Posted by headers

... , but dont fail to recognise something better.

Wish I could see some tangible benefit other than the marginally better pressure retention.
And if that be the objective, these puncture preventatives do an astonishingly good job of holding pressure constant for months on end!
The one I'm using is Slime.

[headers]

Sir, i am using TL tyres and Nitrogen for the past 6 years to tell you that it is better. But if one wants to disagree, I cant do much.

Having said that, i should also emphasize have been driving since 1989 till 2001 odd using normal air and tubetype tires!

ANd have crossed a Million Kms on Road!

[Amien]

Don't the Bridgestone Potenza's on the Nissan GTR come filled with nitrogen from the factory?
Even a marginal improvement might be important in racing/benchmarking. Weather you need it for normal use is upto you i guess.

[agbenny]

Nitrogen is filled at a Pump station in Coimbatore for FREE (Near Shanti Gears), even if you fill one litre of fuel. :-)