Filling Nitrogen in Tyres

[gears1313]

Re: nitrogen filling in tyres

I have heared that nitrogens are lighter than air so they increases the fuel efficiency of the vehicle; just a bit!

 

[auto_luver]

Re: nitrogen filling in tyres

I have heared that nitrogens are lighter than air so they increases the fuel efficiency of the vehicle; just a bit!

Normal air contains about 78% nitrogen and 20.9 % oxygen and rest other gases. Nitrogen filled in gas stations are about 88 to 92 % pure, which means we r still filling it partly with air, so if we roughly calculate, the weight difference is negligible.
Nitrogen being an inert gas does not heatup inside the tyre as incase with normal air and that too when the car is on hard run , like in highways where the car runs continuosly without stopping. so, Nitrogen filled tyre runs marginally colder than normal air which may reduce the wear on tyre on a longer run.
In my personal experiance I have found that pressure inside nitrogen filled tyre last longer than normal air, so i still prefer it .

 

[HoLySaTaN]

Re: nitrogen filling in tyres

Also, less % of oxygen inside the tyre thus reducing the chances of it reacting with the rim and forming Iron Oxide (rust)

But, as far as I have tried, the time duration for nitrogen staying inside tyres is same as the normal air filled. My brand new tyres measured less in just a week in a normal manner like it was filled with ordinary gas!

 

[Akash]

Re: Nitrogen in tyres.

Threads Merged.

 

[mukeshus]

Re: nitrogen filling in tyres

Normal air contains about 78% nitrogen and 20.9 % oxygen and rest other gases. Nitrogen filled in gas stations are about 88 to 92 % pure, which means we r still filling it partly with air, so if we roughly calculate, the weight difference is negligible.
Nitrogen being an inert gas does not heatup inside the tyre as incase with normal air and that too when the car is on hard run , like in highways where the car runs continuosly without stopping. so, Nitrogen filled tyre runs marginally colder than normal air which may reduce the wear on tyre on a longer run.
In my personal experiance I have found that pressure inside nitrogen filled tyre last longer than normal air, so i still prefer it .

Auto_lover: Its 99.9% nitrogen is available here in Bangalore.
So .01 % of oxygen is negligible.

 

[auto_luver]

Re: nitrogen filling in tyres

Auto_lover: Its 99.9% nitrogen is available here in Bangalore.
So .01 % of oxygen is negligible.

Thats good for you buddy, but I haven't seen any ( my personal experience ) in chennai like that and I don't really know when these equipments are calibrated last

 

[redbeast]

Re: Nitrogen in tyres.

What is Nitrogen?
Colourless, odourless, tasteless, and non-toxic, Nitrogen exists as a non-flammable gas at atmospheric temperatures and pressures. It is one of the basic elements. Normal, compressed, air consists of approximately 78% nitrogen gas, with most of the remainder being made up of oxygen.

What effect can Nitrogen have on tyres?

Under ideal conditions, Nitrogen will run cooler than normal compressed air, will exhibit slower leakage, have no oxidation, and be virtually non combustible.

In particular circumstances, pure Nitrogen is used as the inflation medium in earthmover, racing, and aviation tyres to where they are required to perform under conditions of high stress and in critical environments, generating higher than usual temperatures. Examples are:

* Where exceptionally high loads are carried by the vehicle,
* High-speed travel,
* Where high pressure must be maintained.

Also, in some instances, the tyre casing wears better, and to some extent, tyre tread wears more slowly, when Nitrogen is used in these extreme circumstances.
How can Nitrigen affect on-road tyres?

Despite the advantages in specialised tyres subject to extreme conditions, the benefits of Nitrogen inflation for tyres used primarily on ordinary roads in standard driving conditions are not at all clear.

The main arguments put forward for its use of pure Nitrogen in tyres under normal conditions are:

a) Alleged Improved Tread Wear
Unfortunately, little controlled test data exists to support or refute this claim.

Improved tread wear comes from proper tyre maintenance, for example from:

* Checking your tyre inflation pressure at least once a month, and preferably fortnightly
* Regular rotation and
* Correct wheel alignment.

Take care of these, and your tyres will ride more safely and wear better, irrespective of the choice of inflation medium.

b) Casing Durability
When the tyre heats up, moisture in the tyre vaporises and expands. In some circumstances, moisture in the compressed air in a tyre can gradually migrates through the inner lining of a tubeless tyre and into the steel-cord body plies, resulting in rust, which ultimately causes casing degradation.

This applies to truck and bus, and some light truck tyres. Passenger and most light truck tyres are not affected, as they are composed instead of textile body ply material (eg polyester, nylon, rayon, etc).

One of the main claims made by Nitrogen proponents is that compressed Nitrogen contains less moisture than compressed air, thereby reducing the incidence of this moisture migration effect.

The primary aim should be to avoid moisture migration irrespective of the mix of gas used in tyre inflation. Moisture can be introduced into the tyre as a result of poor workshop practices and incorrect or inadequate tyre fitment procedures.

To this end, we encourage proper selection of compressor equipment, air-line routing, the use of air dryers, and other sound workshop and equipment maintenance practices in order to minimise moisture introduction.

This applies both to initial tyre inflation and top-up air.

Poor tyre fitment and workshop standards can also contribute to wheel and rim corrosion. If proper practices and equipment are utilised, moisture migration is minimised. It does not matter so much whether Nitrogen or compressed air is the inflation medium.

If you fill your tyres with Nitrogen, to retain any benefit, you will need to top up with Nitrogen as well. Topping up with Compressed air will negate any benefit.

When you first fill up your tyres, they already have air in them, so they really should be filled then evacuated, then filled again to remove the residual atmospheric air.

c) Susceptibility to Tyre Fires
Ever since the introduction of tubeless radial-ply tyres, the risks of tyre fires and/or self-ignition of tyres due to excessive heat have been rendered virtually nonexistent.

With tubeless radial-ply tyres, there is no 'tube and flap' which could cause friction and, therefore, heat to be generated.

It takes far higher temperatures to ignite steel radial truck and bus tyres, as compared with fabric-reinforced bias-ply tyres.

If properly maintained and used within legal tolerances, air-inflated passenger and light truck radial tyres will rarely, if ever, generate sufficient heat to self-ignite and burn, whether filled with Nitrogen or with ordinary compressed air.
Those motorists who choose to keep their tyres inflated with Nitrogen must bear in mind that Nitrogen inflation is NOT a 'set and forget' option. Regardless of the gas inflated into your tyres, to preserve their safety characteristics and longevity, you must check tyre pressure tyre and condition regularly.

Source: Bridgestone

 

[mukeshus]

Re: Nitrogen in Tyres.

I am filling Nitrogen for my Bridgestone Dueler H/T 689.
From the past 1 and half years.
Nice information Redblast.

 

[sandeep]

Re: Nitrogen in Tyres.

Filling your tires with nitrogen instead of regular air doesn’t offer a substantial advantage for a street-driven car. The commonly held theory is that nitrogen molecules are fatter than traditional air molecules and resist seeping through tires quickly, which maintains pressure for longer. This may be effective on racecars or commercial vehicles, but if you regularly check your street car’s tires like you’re supposed to, you shouldn’t have to worry about the tires losing air. Also, regular checks give you a chance to inspect for nails, staples or metal fragments that may be dangling out of your tire.

The one advantage we do see, however, is the cool green valve stem caps that designate that the tires are nitrogen-filled.

 

[mukeshus]

Re: Nitrogen in Tyres.

Filling your tires with nitrogen instead of regular air doesn’t offer a substantial advantage for a street-driven car. The commonly held theory is that nitrogen molecules are fatter than traditional air molecules and resist seeping through tires quickly, which maintains pressure for longer. This may be effective on racecars or commercial vehicles, but if you regularly check your street car’s tires like you’re supposed to, you shouldn’t have to worry about the tires losing air. Also, regular checks give you a chance to inspect for nails, staples or metal fragments that may be dangling out of your tire.

The one advantage we do see, however, is the cool green valve stem caps that designate that the tires are nitrogen-filled.

What does that mean, Did you meant the one with green caps are meant that Nitrogen is filled?

 

[Shona210]

Re: Nitrogen in Tyres.

No offences,
I got it filled in my all 3 cars from Maruti Authorised Service Centre for 250 per car(5 tyres) ,but did not find any difference rather tension as in case of a leak i had to go back to the dealer and get the tyre topped up with nitrogen,otherwise air would had mixed up with nitrogen.
Further after 2 refills(i.e deflate tyre completely then inflate with nitrogen then again deflate and inflate with nitrogen,as per service advisor) only you get 100% nitrogen and in case your car tyre gets punctured you cannot get air topped up ,you have to change the tyre otherwise again 2 refills, it spoils the whole purpose of having a tubeless tyre ,neither did i find any difference in average,pickup,handling.
Will try to find video of nitrogen being inflated in my car.

 

[vaibhav]

Re: Nitrogen in Tyres.

Yaar
these days people waste so much money on cars in such gimmics..

 

[mukeshus]

Re: Nitrogen in Tyres.

Yaar
these days people waste so much money on cars in such gimmics..

Vaibhav you are totally wrong on this aspect, i am filling the nitrogen from the past 2 years.
Tyre won't bulge after long highway drives.

 

[smooth rider]

Re: Nitrogen in Tyres.

i filled up with nitrogen today. lets see what happens.

 

[Shynish M]

Re: Nitrogen in Tyres.

I am also using Nitrogen for last 1 month. Only problem is not many outlets has this stuff. I am feeling the steering to be a littile bit lighter after filling (I don't have power steering).