HC Deb 16 June 1971 vol 819 c89W
Mr. Skeet

asked the Secretary of State for the Environment what he estimates would be the extra cost to the consumer in terms of new pence per gallon of introducing unleaded gasoline in the United Kingdom.

Mr. Eldon Griffiths

I am advised that lead-free petrol would cost about one new penny more per gallon for low octane ratings and substantially more for higher ratings.