Forum Discussion
carringb
Jul 16, 2020Explorer
OEMs started using N2 because it turned out to be cheaper than a large filter-drier system on their shop air. Unless you are racing on a track with dedicated racing tires, where 1 couple psi has a measurable difference in lap times, it's not necessary. The nitrogen itself isn't even the real benefit (regular is is mostly N2 anyways). It's the lack of moisture that makes N2 tire fills beneficial. Moisture in your tire-air will make tire pressure vary more with heat. And for OEMs, it alleviates moisture concerns that could shorten the life of their tire-pressure-sensors.
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