The world's metropolitan law-makers gathered in New York this week (14-17 May), at the C40 Climate Summit, with the aim of reducing global greenhouse gas emissions. One of the routes to do that is right under their noses, however – a diesel Audi A8, shown at the summit itself, that runs on squeaky clean fuel.
The A8 TDI runs on Shell's Synfuel, a gas-to-liquid propellant manufactured from natural gas that's entirely free from sulphur and aromatics.
When burned, Synfuel produces 35 per cent less soot, 93 per cent less carbon monoxide, nine per cent less nitrogen oxides and five per cent less carbon dioxide than conventional diesel fuel. Unlike diesel, it produces no sulphur dioxide at all. And, according to Shell, it can be used in any diesel-engined Audi model without any retrofitting measures.
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