Originally Posted by JonZoidberg
Is nitrogen a scam? They say it will leak slower due to the larger molecules, but having not slept through 10th grade chemistry I know that nitrogen is a large component of the atmosphere, but they support it enough to guarantee it with unlimited free refills. I wouldn't have sprung for it if Sam's wasn't fitting the bill.
Is nitrogen worth $12 to fill up 4 tires? Well, considering that liquid nitrogen costs $0.79 a gallon from an industrial supplier, and given the fact that you'd probably need less than a feather's amount of nitrogen to fill up the tires, you're probably getting $0.0001 worth of nitrogen.
Is it worth it if Sam's is paying the bill? Well, sure.