Gas-powered taxis are Britain's latest answer to the air pollution menace. By means of a?
Gas-powered taxis are Britain's latest answer to the air pollution menace. By means of a relatively simple conversion, the taxi engine can be modified to operate on liquid gas -- cutting fuel bills and significantly reducing carbon monoxide exhaust fumes.
The cost of the conversion is about GBP 150 Sterling (360 dollars). Since liquid petroleum gas sells for about half the price of petrol, it is estimated that the average converted taxi can start making a profit after only nine months.
One drawback of the system is that the range of the converted taxi is restricted to about 200 miles (322 kms). For this reason, the conversion of private cars to liquid gas is impracticable at the present.
When tested by instruments measuring carbon monoxide output, the gas engine barely registers any effect. A petrol engine, submitted to the same test, produces 10 times the output of noxious exhaust gases. If public transport in a city the size of London could be converted to gas engines, the cut in the level of air pollution would be dramatic.