Nitrogen in tire of my 2012 ML350 - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 05-09-2013, 11:00 AM Thread Starter
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Nitrogen in tire of my 2012 ML350

I have used nitrogen in other car tires but when I asked my Mercedes dealer about it I was told Mercedes does not recommend it. No reason given. I can think of several to use it. Does anyone know why I should not use it.

Regular air is 78% nitrogen, 21% oxygen & 1% water vapor. Oxygen & water vapor can degrade tires & wheels. Air will lose one & a half to two PSI per month due to oxygen molecules permeating through the tire rubber. Nitrogen is less then one half a PSI per month. Oxygen can cause oxidation of the rubber & corrosion of mental & alloy wheels & the water vapor in air can accelerate these processes. Nitrogen will not cause corrosion as it is an inert gas. Nitrogen also will not degrade the seals in air valves. Nitrogen over air increases tire longevity. Nitrogen maintaining a more even pressure helps avoid the two greatest threats to retire life, heat & uneven wear.

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post #2 of 3 (permalink) Old 05-09-2013, 04:23 PM
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I'd guess it isn't that you shouldn't use it at all, ever.... But more like, know what you're doing with it... Probably just cautious offerings from the dealer than a warning against it.
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post #3 of 3 (permalink) Old 05-09-2013, 08:10 PM
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