§ 8. Mr. Gwilym Robertsasked the Minister of Transport what investigations her department is carrying out into the reduction in tyre failure and increased safety produced by filling tyres with nitrogen; and what steps she is taking 1511 to develop the use of nitrogen-filled tyres.
§ Mr. CarmichaelWe are seeking more information on the basis of reports, originating in America, that nitrogen filling of tyres might reduce tyre failures. At present we have no evidence to suggest that this is likely to be an effective and practical means of making tyres safer.
§ Mr. RobertsBut would my hon. Friend not accept that the American experiments suggested that, once internal oxidation is reduced, the rate of tyre failure falls appreciably and that there is no suggestion that the cost of nitrogen filling of tyres would be prohibited?
§ Mr. CarmichaelThere has been a suggestion from America that nitrogen filling of tyres would reduce the oxidation of the rubber, but at present we are making only preliminary inquiries to see how effective this may be. If those inquiries prove hopeful, we will institute some research. As to tyres and tyre safety, the new Regulations introduced by my right hon. Friend which come into effect on 1st April are a practical step in this direction.