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Thats exactly why I thought Porsche put Nitrogen in the cars stock ? It maintains pressure under heated use much better than regular oxygen. Less checking & maintenance plus some minor stuff with better mileage since your tires are always 'perfectly' inflated.
I could fill it with air, but considering I got this car 8 months ago (directly from Porsche, filled with Nitrogen stock I think ) and haven't need to deal with tire pressure, I would like to keep using Nitrogen.
I called a few local shops though, and they had no idea where I should go so I thought maybe a fellow P owner might know.
I think one suggestion from somewhere was Costco. Will check tomorrow. I'll let you guys know.
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