Q I am thinking of converting a petrol engine to Calor
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gas operation. What economy would I gain and would Ca/or gas be harmful to the valves etc.? 1 have heard there is a firm in Devon specializing in carburetter conversion.
ALiquified petroleum gas is not taxed in
this country but such gas would not be supplied for vehicle applications. Moreover, a countervailing tax onl.p.g. would undoubtedly be imposed if it were used for vehicle propulsion on any scale.
Running on untaxed I.pg. would be more economic than operating on taxed petrol, but if a countervailing tax were imposed, it is doubtful whether there would be an immediate gain in economy. Operating on I.p.g., however, is favourable to long engine life because the gas does not contaminate the oil, and valve life should be comparable. It is possible to run on a higher compression ratio when gas is used as a fuel.
We are not aware of any maker of conversion equipment in Devon. However, Lipton LP Carburetter Co. Ltd., Woburn Green, Bucks, produces such equipment for industrial application but would not supply equipment for conversion of a vehicle petrol engine.