The link:
http://msnbc.msn.com/id/14121979/
OK, there seems to be some validity to this (larger molecules than air less likely to escape, inert gas not causing corrotion, etc.), but still, would this really boost mileage by any significant amount?
The link:
http://msnbc.msn.com/id/14121979/
OK, there seems to be some validity to this (larger molecules than air less likely to escape, inert gas not causing corrotion, etc.), but still, would this really boost mileage by any significant amount?