Thanks to the efficient turbocharged, common-rail, direct fuel-injection diesel engine, the concept car is still very fuel-efficient.

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It boasts a fuel-injection engine made especially for the hot and dusty Indian climate.

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The GM engine has electronic fuel injection that automatically adjusts to any acceptable fuel configuration.

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Perhaps a risk worth taking, Lord Turner is likely to argue, if it is a one-off injection of fuel into the flat engine of the economy.

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But they are now developing new engines, called fuel injection engines, where the fuel goes directly into the engine and it is about four times more efficient.

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