Low sulphur test
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• Westminster City Council is to begin a 12-month trial of low sulphur diesel in April. Four vehicles will be involved initially—two light vans, and two refuse collection wagons operated by MRS Environmental Services under contract to the authority. Westminster will be installing its own low sulphur tank and it is likely that the fuel will be supplied by Greenergy. The council says that it is trialling low sulphur— sometimes referred to as city diesel—because it is concerned about the levels of pollution generated by traffic. A big advantage is that it can be used in existing vehicles, says Chris Cawley, a health officer in the authority's environmental health division.
"The trouble with fuels like compressed natural gas (CNG) is that you have to make major changes to the engine," he says. "And city diesel is only a few pence per litre more expensive than conventional diesel".