Danm it. Gotta go pick up my car, how the hell the oil change got so expensive these days? That doesn't even include other things! That's why we can't compete, no doubt about it! Car Doctors from Mexico? What a world!
The air you are breathing right now (and a compressor would put in hyour tires) is 79% nitrogen anyway. Not sure I understand the hype on adding nitrogen beyond that.....a gimmick for more money if you ask me.