At my dealership we put nitrogen in the tires of all of our cars. I can't say anything with regards to seepage, but I have noticed that nitrogen does result in a lot less "low tire" warnings once cold weather hits.
Hey all. My name is Kevin, got put on to the site by David Haynes (met him up here at Grubbs Nissan where I work when he was getting his car serviced). Been poking around on the site for a few days and it seems like a pretty chill place that will certainly help pass the time at work haha.
Looking forward to being a part of the community here.