Wheels/Tyres: Nitrogen in Tyres, wind noise on the LHS

[sexysuv69]

Hope for more tips and added knowledge, friends.

1) Does nitrogen in the Tyres improve longevity of tyres and reduce noise as the tyres people claim? Or is it hogwash?

After 10,500 km clocked, the front tyres are almost due for change already.
What kind of tyres will last longer?

2) At 110 km/hour, audible wind noise can be heard coming from the left (passenger side) but none on the right. It seems to be from above the left door, or the rails on top, but on inspection, I can see nothing to incriminate.
After diagonally switching the tyres suggested by the dealer, the wind noise is still there. I'm perplexed!

[S60-MBS]

I know someone in states who has nitrogen in tyres..only difference is it doesnt heat up the tyres as much...
you can Pm Bob04917 for more info on the nitrogen

[bob13]

From http://www.blackcircles.com/general/technology

Why fill my tyres with Nitrogen?
Why would you want to do this? The benefits of Nitrogen filling are as follows:

* Improved comfort of ride
* Improved safety
* Increased fuel savings
* Improved life of tyre

Nitrogen has long been the accepted gas medium for filling aircraft tyres, racing tyres and heavy mining and construction vehicle tyres. Nitrogen is used for safety reasons and to ensure that tyres are always at a constant pressure. Compressed air, the traditional medium for inflating car tyres, contains both oxygen (21%) and nitrogen (78%).
The rubber tyre is like a membrane, through which oxygen permeates three times faster than the nitrogen. The result is that the oxygen slowly leaks out through the rubber walls, and the under-inflation leads to higher tyre wear with a consequent decrease in safety and comfort, and higher fuel costs.

[StevePritchard]

Originally Posted by sexysuv69

Hope for more tips and added knowledge, friends.

1) Does nitrogen in the Tyres improve longevity of tyres and reduce noise as the tyres people claim? Or is it hogwash?

After 10,500 km clocked, the front tyres are almost due for change already.
What kind of tyres will last longer?

2) At 110 km/hour, audible wind noise can be heard coming from the left (passenger side) but none on the right. It seems to be from above the left door, or the rails on top, but on inspection, I can see nothing to incriminate.
After diagonally switching the tyres suggested by the dealer, the wind noise is still there. I'm perplexed!

Is it definately wind noise? I had problems with my rear bearings, and it sounded a bit like wind noise (wowowowowowowow). Obviously not likely to be sounding like it's coming from the roof, but I found it difficult to judge where it was coming from when driving.

Cheers,

Steve.

[andykem]

Why not use CO2? 10 billion(?) vehicles on Earth, all using tyres inflated with CO2, how many tonnes of gas is that?

Well, it's a thought!
HTH, someone.
Andy

[GMcL]

Originally Posted by bob13

From http://www.blackcircles.com/general/technology

Why fill my tyres with Nitrogen?
Why would you want to do this? The benefits of Nitrogen filling are as follows:

* Improved comfort of ride
* Improved safety
* Increased fuel savings
* Improved life of tyre

I've been using Nitrogen in my motorbike tyres for the last year.
It has made no difference to the handling or comfort, fuel economy is the same and the tyre wear is the same. The only difference I have noticed is the tyre pressure is less prone to variation, due to the outside ambient temperature, than previously experienced using air.

[AlanH]

Just a thought...

If you keep topping your tyres up with air and the oxygen leaks out faster than the nitrogen, I wonder how long it would take for the tyre to end up with almost all nitrogen in it anyway []

[GSMGuy]

Originally Posted by sexysuv69

2) At 110 km/hour, audible wind noise can be heard coming from the left (passenger side) but none on the right. It seems to be from above the left door, or the rails on top, but on inspection, I can see nothing to incriminate.
After diagonally switching the tyres suggested by the dealer, the wind noise is still there. I'm perplexed!

By any chace, do ypu have the "laminated side glass" option?

Mike

[T5JOCKY]

Originally Posted by GMcL

I've been using Nitrogen in my motorbike tyres for the last year.
It has made no difference to the handling or comfort, fuel economy is the same and the tyre wear is the same. The only difference I have noticed is the tyre pressure is less prone to variation, due to the outside ambient temperature, than previously experienced using air.

Your right its a load of old tosh really, for a road car its a waste of money, the onlyl reason that its mandatory for aircraft use is the safety issue, as its a inert gas, i have access to nitrogen at work and have tried it in my car, and it made no difference what so ever

[RoyMacDonald]

Vredestein have this to say in their FAQ on nitrogen

Does a nitrogen-filled tyre keep its pressure for longer?


A tyre filled with 100% nitrogen loses its pressure more slowly than a tyre filled with regular air. However, the difference is not very significant because atmospheric air already contains four times more nitrogen than oxygen. Nitrogen makes for a dry filling (no water vapour), which is positive with a view to corrosion as well as to temperature control. The pressure increase due to temperature fluctuations is the same for both filling materials. That means tyres filled with nitrogen in cold condition don't need a different pressure than tyres filled with air.


Basically, the use of nitrogen is not required for Vredestein passenger car tyres. The quality and corrosion resistance of modern car tyres and rims is fully adequate for regular air filling.


Note: remember that tyres with nitrogen filling must still be checked regularly for their correct pressure (see item 1). All kinds of conditions such as tyre damage or not fully sealed valves may cause rapid loss of pressure from a nitrogen-filled tyre just as well.


http://www.vredestein.co.uk/Onlinead...52558&FaqID=25