Can I use nitrogen instead of air in my tyres?

At a recent visit to ATS Tyres they suggested that I inflate the tyres on my Land Cruiser with nitrogen saying that this leads to better handling of the vehicle, less pressure loss and less corrosion to the wheel. I accepted this advice and had all tyres including the spare drained of air and re-inflated with nitrogen at a cost of £5. Are there any downsides to having nitrogen in the tyres as far as you are aware?
I discussed this with Michelin. The only possible advantage they could think of for road tyres was avoiding contamination of the air inside them from oil in the compressor pump.
Answered by Honest John on

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