Friday July 23, 2021

Nitrogen in the tires: is it worth the expensive tire gas?

Reading time approx. 5 Minutes

Nigrin Tires Leaky breakdowns Help wheel change 13 Nitrogen in the tires: Is it worth the expensive tire gas?

Instead of normal air should Nitrogen to be filled into the tires, thereby creating, among other things, a long constant tire pressure should be guaranteed, whereby the air pressure has to be checked less often. With this promise, many tire dealers try to lure customers and advertise the process accordingly. The cost of such a procedure is approximately 12 euros for all four tires of the vehicle. According to the dealers it is of course worthwhile - even consumption and wear should be reduced by the process. But in this article we would like to explain in more detail whether the 12 euros are a good investment and whether there is anything to the various promises.

Nitrogen for aircraft and racing tires

Slicks racing tires racing tires tuning Nitrogen in the tires: is it worth the expensive tire gas?

Basically: Ja, Nitrogen escapes from the tire more slowly than "normal" Air. That's because the so-called Diffusion coefficient is worse due to larger molecules. This difference, however, is marginal - some tests found that the amount of air or nitrogen that had escaped was approximately the same over several months. Here we are talking about minimal Hundredths of a bar difference and such a difference is hardly worth mentioning or even outweighed with money with regard to a road car. However, there is another argument that should speak in favor of filling the tires with nitrogen: Nitrogen catches fire less quickly. Precisely for this reason, the filling with nitrogen is often carried out in areas where a fire would be absolutely fatal: Among other things, commercial aircraft, Formula 1 racing cars or hazardous goods transporters.

Not really useful in a "normal" car!

Reimport gray import vehicle EU new vehicle 3 Nitrogen in the tires: Is the expensive tire gas worth it?

In the above-mentioned examples, the use of tire gas also makes sense, because in such cases the tires are exposed to extremely high loads, which results in an increased risk of fire. But nitrogen is not flammable. As the name suggests, nitrogen is even able to smother a fire, while oxygen “feeds” the fire even further. However, it is important to note that filling a normal car with nitrogen does not make much sense. This is due to the fact that the stresses that a normal vehicle is exposed to in traffic are nowhere near the stresses to which Formula 1 vehicles or commercial aircraft are exposed.

The tire pressure must be checked further

Tire pressure monitoring rdks retrofit system 4 Nitrogen in the tires: is it worth the expensive tire gas?

If you think about the fact that about 3 bar escaped from the tire over a period of 0,1 months, you quickly come to the conclusion that the air pressure of the tires should still be checked at regular intervals. Factors such as, for example, play a much larger role here Leaks or Damage. If such circumstances exist, it makes no difference whether the tire is filled with air or nitrogen - both “fillings” escape more or less quickly. So, as you can see, by and large, there isn't really much to be said for filling tires with nitrogen. Instead, you should stick to the conventional method of filling with air. You can safely save the 12 euros that would be due for filling with nitrogen and instead invest in something else that makes sense Metal valves or a few chic ones Wheel Faces invest. Tip: It is important to pay attention to this when a tire change is due for a tire with TPMS.

the advantages and disadvantages at a glance

Tire gas nitrogen car tires e1605857858851 Nitrogen in the tires: is it worth the expensive tire gas?


  • not flammable
  • has a fire retardant effect
  • prevents rust
    of rim / valves
  • "something" escapes
    from the tire
  • Filling is for the dealer
    identically simple as with
  • almost every type of tire can
    filled with nitrogen

  • Rolling resistance, pressure loss
    od. Driving comfort change
    not essential
  • already compressed air has approx. 78%
    Nitrogen content (filled with
    Nitrogen increases the proportion
    to only approx. 90%)
  • escapes so quickly in the event of a defect
    like air
  • Tire gas ensures deceptive
    Security (by virtue of

    the provider)

We hope that you have received our information report on the topic / term Tire gas (Further designations / keywords are: nitrogen in tires, compressed air replacement, gas filling, ) from the Autotuning category. Our goal is to have the largest German-speaking tuning lexicon (Tuning Wikipedia) and to explain tuning technical terms from A to Z easily and understandably. We are therefore expanding this lexicon almost daily and you can see how far we have already come HERE see. And soon the next one will be Tuning scene concept illuminated by us. There's a theme that can not be can be found in our Wikipedia? Then send us an email at and gives us the term. We will write a suitable article as soon as possible. PS. By the way, you will be informed about new topics if you have ours Feed subscriber.

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