Quote:
Originally Posted by 1MORELAP
Nitrogen tire pressures must be different. I assume rule of thumb extra 3 PSI... but I do not know. BMW assumes you put air, and prints pressures for air, not Nitrogen.
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the machine they have was a swap, you fill your tires up to the PSI you want with Air, then you plug in the nitro machine and it does a air swap, its awesome, process takes abt 15 mins total for all 4 tires.