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Petroleum is a complex mixture of organic liquids called crude oil and natural gas, which occurs naturally in the ground and was formed millions of years ago. Crude oil varies from oilfield to oilfield in colour and composition, from a pale yellow low viscosity liquid to heavy black 'treacle'…

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The Federal Government has introduced regulation of the quality of petrol and diesel fuel in Australia. The principal drivers of the fuel quality regulation are environmental. The adoption of emerging vehicle engine and emission control technologies is a key strategy in the management of ambient…