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According to the report, in April fuel consumption had been lower than a year before for the sixth straight month, suggesting 2008 would be the first year US usage declined in 17 years. The total annual distance driven in the US began declining in 2006. [7] After Hurricane Katrina and Hurricane Rita, gas prices started rising to record high levels.
Consumption map of a 1.5-litre three-cylinder diesel engine. A consumption map or efficiency map [1] is a chart that displays the brake-specific fuel consumption of an internal combustion engine at a given rotational speed and mean effective pressure, in grams per kilowatt-hour (g/kWh).
Fuel consumption monitor from a 2006 Honda Airwave.The displayed fuel economy is 18.1 km/L (5.5 L/100 km; 43 mpg ‑US). A Briggs and Stratton Flyer from 1916. Originally an experiment in creating a fuel-saving automobile in the United States, the vehicle weighed only 135 lb (61.2 kg) and was an adaptation of a small gasoline engine originally designed to power a bicycle.
Fuel consumption is a more accurate measure of a vehicle's performance because it is a linear relationship while fuel economy leads to distortions in efficiency improvements. [2] Weight-specific efficiency (efficiency per unit weight) may be stated for freight , and passenger-specific efficiency (vehicle efficiency per passenger) for passenger ...
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English: This diagram shows the brake specific fuel consumption (BSFC) [g/kWh] of the smart forfour 3-cylinder Diesel engine with 1.5 liter displacement. The axes are horizontally rotational speed, n , in rpm and vertically mean effective pressure p e (bar)
Energy consumption (reciprocal efficiency) [3] is expressed terms of fuel consumption: [2] volume of fuel (or total energy) consumed per unit distance per vehicle; e.g. l/100 km or MJ/100 km. volume of fuel (or total energy) consumed per unit distance per passenger; e.g., l/(100 passenger·km).
(3) The 2014/16 BMW i3 (60 A·h) ranked as the most fuel economic EPA-certified vehicle of all fuel types considered in all years until MY 2016. It was surpassed by the 2017 Hyundai Ioniq Electric in November 2016. [84] (4) The i3 REx has a combined fuel economy in all-electric mode of 117 mpg-e (29 kW·h/100 mi; 18 kW⋅h/100 km). [85]