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For instance, a small car might need only 10–15 horsepower (7.5–11.2 kW) to cruise at 60 mph (97 km/h). It is likely to be geared for 2500 rpm or so at that speed, yet for maximum efficiency the engine should be running at about 1500 rpm (gasoline) or 1200 rpm (diesel) to generate that power as efficiently as possible for that engine ...
Because of the integrated form of the Mark V and its small water capacity, any oil that enters the water will not leave the water while the engine is running. This oil will then coat and foul the inner surfaces of the condenser and steam generator, greatly reducing their performance. A non-integrated steam power system might have, for instance ...
This means that a bicycle will use between 10 and 25 times less energy per distance travelled than a personal car, depending on fuel source and size of the car. This figure does depend on the speed and mass of the rider: greater speeds give higher air drag and heavier riders consume more energy per unit distance. In addition, because bicycles ...
These engines gave good performance and had up to 30% less fuel consumption over the carburetor version, primarily under low engine loads. [44] An added benefit of the system was having a separate tank for the engine oil which was automatically added to the fuel mixture, obviating the need for owners to mix their own two-stroke fuel blend. [45]
Electric cars are having a major impact in the auto industry [39] [40] given advantages in city pollution, less dependence on oil and combustion, and scarcity and expected rise in gasoline prices. [ 41 ] [ 42 ] [ 43 ] World governments are pledging billions to fund development of electric vehicles and their components.
Your car's fuel economy rating impacts how much you spend on gas. The higher the rating, the less you spend on fuel. Because gas prices can fluctuate daily, and from one location to another ...
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These can be battery or fuel powered but in either case, use less fuel, do no harm to the vehicle's engine, and reduce or eliminate emissions. [3] Other vehicles, including police, military, service trucks, news vans, fire trucks, ambulances, and hydraulic bucket trucks can be equipped with mobile power idle reduction systems, similar to a ...