Diesel

- Non-renewable source of energy - Diesel fuel in general is any liquid fuel used in diesel engines - Most common is specific fractional distillate of patroluem fuel oil, but alternatives that are not derived from petroleum, such as biodiesel, biomass to liquid (BTL) or gas to liquid (GTL) diesel, are increasingly being developed and adopted - Petroleum-derived diesel is increasingly called petrodiesel - Ultra low sulfur diesel (ULSD) is a standard for defining diesel fuel with substantially lowered sulfur contents - As of 2007, almost every diesel fuel available in America and Europe is the ULSD type. - Diesel-powered cars generally have a better fuel economy than equivalent gasoline engines and produce less greenhouse gas emission. Their greater economy is due to the higher energy per-litre content of diesel fuel and the intrinsic efficiency of the diesel engine.

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