§ Mr. Nigel EvansTo ask the Secretary of State for the Environment what assessment he has made of the contribution petrol containing the detergent petrol additives which are able to clean the combustion chamber as well as the intake valves and the fuel injectors will make towards the Government's overall aim of improving air90W quality in the United Kingdom; and if he will recommend the use of such petrol by the public sector, including the Government car service.
§ Mr. Atkins[holding answer 20 May 1994]: None. The British standard for petrol does permit the use of performance enhancer additives but it is up to the individual oil company to substantiate such claims.
§ Mr. Nigel EvansTo ask the Secretary of State for the Environment what assessment he has made of the effect of the adoption of petrol containing the detergent petrol additives which clean the combustion chamber as well as the intake valves and the fuel injectors on the level of vehicle emissions.
§ Mr. Atkins[holding answer 20 May 1994]: None.