I am on my second set of Kuhmos with nitro. My Infiniti Q45 Sport has a an air pressure monitor system. During the 40k on the first set, the pressure did not fluctuate 2psi. I ran 43psi for the entire 40k miles. I am now on my second set and have the same experience.
As a note of support to the previous poster, when I discussed nitro w/ my tire guy, he said the only install it during the initial installation of new tires.
(I buy 2 sets of tires a yr.) He didnt charge me for the nitro.
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