Scirocco Central

Being tempted to put nitrogen in my tyres. Has anyone done it and is it worth the money?

i've got 78% nitrogen in mine

S

trix wrote:i've got 78% nitrogen in mine

S

So... that's just over 3 out of 4 tyres, right?

What is the benefit of having 100% nitrogen in your tyres rather than the normal 78%?

J

It's supposed to be more consistent and not 'leak' so easily, plus change in temperature does not affect it so much. F1 and Aeroplanes have it their tyres.

I had it when I had 4 new Michelins at Costco on my MX5 last year (Costco only use nitrogen). Can't say I noticed a difference and have topped up with a normal foot pump since as I can't be bothered driving to Costco to top up:)

SteveGT wrote:F1 and Aeroplanes have it their tyres.

But you're in a Scirocco ole boy. Mine haven't leaked in 11months.

Interesting, 'cos mine drop 3 or 4 psi quite regularly.

Are you accounting for the 1 voume of air already in the tyre at atmospheric pressure? Or are you thinking that they remove that before tehy fill it with nitrogen?

SteveGT wrote:Interesting, 'cos mine drop 3 or 4 psi quite regularly.

The only time you should ever notice a major drop in tyre pressure (or rise for that matter) is when there's a rapid change in air temp. If you're losing 3 to 4 psi per week (which is how often you should really check them) I would suggest getting them checked for leaks.

Monthly, but thanks for the advice.

Complete gimmick so that Costco customers feel "special" - if Nitrogen in the tyres was that critical then everywhere would be doing it.

The difference between pure nitrogen and air properties at normal car operating temperatures is negligible. F1 tyres get very hot and Aeroplane tyres get very cold during their "normal" operation, and as someone else has said they don't apply a vacuum to the tyres when they fit them to ensure that no air got in, don't forget that operating pressure of our tyres is only around 2.3 atmospheres, and one of those is always air, when they fill up with Nitrogen.

Not a fan of Costco (for tyres - they're good for other stuff), you go in to replace your tyres and they insist on putting the current backs on the front "for safety reasons" if you want the front ones replaced - I know new tyres are a little slippery compared to ones with 300+ miles on them, but does that really mean that when you get a brand new car that you're driving a death trap for the first 300 miles? Having the newest tyres (with the greatest tread depth) on the front makes far more sense. My dad had his fronts done a while back when we visited Costco and they swapped the backs for the fronts, conveniently forgeting to balance the back wheels when they put them on the front. Costco aren't the cheapest around either - they'll beat Kwikfit but you can find R18 235's much cheaper on the net for local fitment.

Helium filled tyres - that's the way to go - will probably shave a critical 150g off the weight of the car. Helium is more of a "perfect gas" (following Boyles law better than Nitrogen).

SteveGT wrote: F1 and Aeroplanes have it their tyres.

edit just realised previous post says exactly the same! haha RTFT

maisbitt wrote:Complete gimmick so that Costco customers feel "special" - if Nitrogen in the tyres was that critical then everywhere would be doing it.

Quite - plus you would have to have one hell of a vacuum pump to remove all the 'natural' air from fitting a new set of tyres first for the tyre contents to be 100% nitrogen.

lancs_lad wrote:

SteveGT wrote:Interesting, 'cos mine drop 3 or 4 psi quite regularly.

The only time you should ever notice a major drop in tyre pressure (or rise for that matter) is when there's a rapid change in air temp. If you're losing 3 to 4 psi per week (which is how often you should really check them) I would suggest getting them checked for leaks.

Our Mini started doing that at 3 years old. After arguing with a mechanic in garage who considered that to be normal (never had it in 22 years of owning brand new cars, including a previous Mini), it was traced to corrosion in the alloy around the valves. Further bit of arguing with BMW finally resulted in 4 brand new wheels.

Hey guys,

Just wanted to share with you, today during lunch time I took aride in my buddy's vw tourek (not sure the spelling is right) and on his front glass mirror he has this sticker on nitrogen air tyres certified. Apparently he's tyres are running on NITROGEN AIR!!? According to him, its much more safer as the car goes on higher speeds the tyres/rubber would not expand because of the nitrogen air. Have you guys ever come accross this? Havent done my research on this but sounds interesting.. It costed him about 20 quids to fill in all four tyres...

It's been available from certain outlets for a while now in the Uk.

If you ever buy tyres from Quidco (UK) they fill tyres with Nitrogen. It does have benefits as it is less susceptible to pressure change with changes of temperature and doesen't absorb moisture as easily. I believe racing teams use it as well but whether there's any benefit for the normal daily driver I very much doubt it. IMHO I certainly wouldn't be paying £20 a go to inflate my tyres once or twice a month!

lancs_lad wrote:If you ever buy tyres from Quidco (UK) they fill tyres with Nitrogen. It does have benefits as it is less susceptible to pressure change with changes of temperature and doesen't absorb moisture as easily. I believe racing teams use it as well but whether there's any benefit for the normal daily driver I very much doubt it. IMHO I certainly wouldn't be paying £20 a go to inflate my tyres once or twice a month!

I sooo agree to that.. by the way, normally how often does one actually needs to fill up their air tyres?

When you get the Ting Ting Ting noise from The tyre pressure monitor system (unless u want to switch it off cos it interferes with maccy d cruising at 10mph)

Chungster wrote:When you get the Ting Ting Ting noise from The tyre pressure monitor system (unless u want to switch it off cos it interferes with maccy d cruising at 10mph)

We dont have the tyre pressure monitor system in our sciroccos here (Malaysia)

Chungster: are you trying to be sarcastic here? Do you have an issue with the questions and comments I make? or are you just being funny ? I dont understand.

Everyone has their own preference and choices. It has nothing to do with safety or breaking the law. I was just asking whether if there is an OPTION towards the safety belt notification chime. My intention is to understand how my rocc works, what it can and can not do to control it instead of it controlling me. I believe most of us are here for the same reason.