noob question ...

jvk

Expert Member
Joined
Oct 7, 2008
Messages
2,189
hi,

i want to put nitrogen in my tyres (father-in-law says its better for when we travel long distance) a few questions i have:

1. is it safe ?
2. can i top up with normal compressed air of the pressure get a bit low ?
3. are there any downsides ?

thanks in advance
 

atomcrusher

Expert Member
Joined
Jun 27, 2006
Messages
4,208
The air that we breath is about 78% nitrogen, and only 22% oxygen ... why bother paying for pure nitrogen in the tyres? It's a gimmick, and Joe Public gets taken in every time by crap like this.
 

wizdumb

Expert Member
Joined
Sep 27, 2006
Messages
2,167
if you have to pay for it, then i wont bother with it...

...like the above said its more gimmicky than anything else.

and too see the full, albeit small advantage, you'd have to keep it filled with nitrogen for the life of your tyre.

and yes, you fill it up to the same pressure as your normal pressure
 

sjm

Expert Member
Joined
Apr 17, 2009
Messages
1,127
hi,

i want to put nitrogen in my tyres (father-in-law says its better for when we travel long distance) a few questions i have:

1. is it safe ?
2. can i top up with normal compressed air of the pressure get a bit low ?
3. are there any downsides ?

thanks in advance

I've got nitrogen in my tyres, haven't really noticed any real difference. Got it from TWT when I got new tyres, don't think they charged me for it, & I can go get it topped up at any branch for free.

Not too sure what happens if you top it up with normal compressed air (apart from no longer having pure nitrogen in your tyres, of course).

Can't think of any downsides.
 

jvk

Expert Member
Joined
Oct 7, 2008
Messages
2,189
am i correct in saying that notrogen doesn't heat up ? thus it helps preventing blow outs on long distance travel ?
 

xrapidx

Honorary Master
Joined
Feb 16, 2007
Messages
40,308
Its supposed to make your tyres last longer, probably due to heating.

As to your questions:
1.) Yes
2.) Yes.
3.) Costs about R80 once-off if you keep going to the same place, e.g. twt.
 

JK8

Banned
Joined
Jan 18, 2006
Messages
14,105
It makes sense I think.
Tyres expand when they get hot due to the particles inside.
If nitrogen doesnt get hot that fast and your tyres dont expand then you stand a lower chance of getting a blowout?
I have Nitrogen...
 

Claymore

Executive Member
Joined
Jan 20, 2004
Messages
8,340
am i correct in saying that notrogen doesn't heat up ? thus it helps preventing blow outs on long distance travel ?

No, not correct. Nitrogen, like air (which is 78% nitrogen) obeys the gas laws (Ideal Gas Law, Boyle's Law, Gay-Lussac's Law, Avogadro's Law, and Charles's Law). Any difference between nitrogen and air is not likely to be measurable with the sort of equipment one uses on a car. (In other words, nitrogen heats up just as much as air does, and volume or pressure increases correspondingly).

The major reason for using anything other than atmospheric air (Ferrari use carbon dioxide in F1, for example) is that standard compressed air contains some water vapour, and the water can expand into gas unevenly, and also (in theory) cause corrosion on wheel rims. This can be eliminated by passing air through a drier, at which point the dry air has the same results as any other gas. In practice, the amounts of water vapour are so small as no make no practical difference to road cars.
 

Keeper

Honorary Master
Joined
Mar 29, 2008
Messages
23,624
i'd say helium is the way to go, as it will make the car lighter.
 

wizdumb

Expert Member
Joined
Sep 27, 2006
Messages
2,167
i'd say helium is the way to go, as it will make the car lighter.

hahahahaha...maybe thats the reason you see those huge boot spoilers on some cars, as they need to keep the car grounded when the tyres are filled with heluim
 

kingmonty

Expert Member
Joined
Jul 15, 2005
Messages
4,268
It makes sense I think.
Tyres expand when they get hot due to the particles inside.
If nitrogen doesnt get hot that fast and your tyres dont expand then you stand a lower chance of getting a blowout?
I have Nitrogen...
on which cars?
 

Ziym3

Well-Known Member
Joined
Mar 5, 2009
Messages
273
yip it keeps tyres cool..so tyres supposed to last longer & better braking (tyres dont get HOT & therefore dont slip/slide)

*edit*

i dont have it in the tyres of my car so cant confirm this!
 
Last edited:

xrapidx

Honorary Master
Joined
Feb 16, 2007
Messages
40,308
yip it keeps tyres cool..so tyres supposed to last longer & better braking (tyres dont get HOT & therefore dont slip/slide)

*edit*

i dont have it in the tyres of my car so cant confirm this!

Um - I thought hot tyres had better grip?
 

Nokkie

Executive Member
Joined
Dec 7, 2005
Messages
9,727
hi,

i want to put nitrogen in my tyres (father-in-law says its better for when we travel long distance) a few questions i have:

1. is it safe ?
2. can i top up with normal compressed air of the pressure get a bit low ?
3. are there any downsides ?

thanks in advance

The one reason I remembered using nitrogen for my tires were when I send my car to go fix it for a puncture. The guy told me it is best filling your tires with nitrogen gas after fixing a puncture because the stress level on the puncture level is much lower than with compressed gas.. Basically almost to "ride" the puncture in before it gets torn out suddenly..

Performance wise, I really didn't notice anything... nor in petrol economics
 

RazedInBlack

RazedInBlack
Joined
Sep 4, 2008
Messages
37,356
am i correct in saying that notrogen doesn't heat up ? thus it helps preventing blow outs on long distance travel ?

That is true. This safety factor means that you won't hear that loud bang and think 'WTF!'
 

Drake2007

Expert Member
Joined
Oct 23, 2008
Messages
4,413
OMW the last 100 years or so of using tyres with air were all a stuff up, everyone panick! we should have been using Nitrogen. Oh what to do.. what to do.
/sarcasm
 

KobusDJ

Well-Known Member
Joined
Oct 9, 2008
Messages
155
Did you see how much water/oil a compressor spits out if they do not maintain the traps and filtration properly.

The impurity problem is solved with Nitrogen.
 

Claymore

Executive Member
Joined
Jan 20, 2004
Messages
8,340
The one reason I remembered using nitrogen for my tires were when I send my car to go fix it for a puncture. The guy told me it is best filling your tires with nitrogen gas after fixing a puncture because the stress level on the puncture level is much lower than with compressed gas.. Basically almost to "ride" the puncture in before it gets torn out suddenly..

Heh. Sounds like he was spinning a line of BS.
 
Top