Forum Discussion
dodge_guy
Jul 17, 2020Explorer II
wanderingbob wrote:
Think about it , it would be near impossible to purge a tire on a rim , could not be done even with a vacumn pump .So your empty tire is sitting there 100 per cent full of air , then they add a little nitrogen to bring it up to pressure . And then charge you or not !
Actually at the least shop I worked at we had a Nitrogen machine for filling tires. You filled them with regular air to seat the bead. Then used the machines vacuum function to suck all the air out. It would collapse the tire. Then you filled it with pure Nitrogen. Done properly it works. But for everyday use it’s unnecessary.
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