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  2. Fuel efficiency - Wikipedia

    en.wikipedia.org/wiki/Fuel_efficiency

    Fuel efficiency is dependent on many parameters of a vehicle, including its engine parameters, aerodynamic drag, weight, AC usage, fuel and rolling resistance. There have been advances in all areas of vehicle design in recent decades. Fuel efficiency of vehicles can also be improved by careful maintenance and driving habits. [3]

  3. Fuel economy in automobiles - Wikipedia

    en.wikipedia.org/wiki/Fuel_economy_in_automobiles

    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.

  4. Engine efficiency - Wikipedia

    en.wikipedia.org/wiki/Engine_efficiency

    The most efficient reciprocating steam engine design (per stage) was the uniflow engine, but by the time it appeared steam was being displaced by diesel engines, which were even more efficient and had the advantages of requiring less labor (for coal handling and oiling), being a more dense fuel, and displaced less cargo.

  5. The Most Fuel-Efficient Cars (That Aren't Hybrids) - AOL

    www.aol.com/most-fuel-efficient-cars-arent...

    Those in need of even more fuel efficiency can always go for the compact sedan's available hybrid powertrain. For a sharp-looking sedan that starts just north of $20,000, the Elantra is an ...

  6. 15 most fuel-efficient hybrids on American roads - AOL

    www.aol.com/15-most-fuel-efficient-hybrids...

    Hybrids combine the best of EVs and gas cars. The General used Department of Energy data to identify the top 15 most fuel-efficient hybrids in the U.S.

  7. Miles per gallon gasoline equivalent - Wikipedia

    en.wikipedia.org/wiki/Miles_per_gallon_gasoline...

    When all factors are considered in DoE's formula, the energy efficiency or equivalent fuel economy of electric vehicles increases, being calculated in miles per the petroleum-equivalency factor of 82,049 Wh/gal rather than miles per the usual gasoline gallon equivalent of 33,705 Wh/gallon, for the purposes of CAFE credits to manufacturers. [27]

  8. 7 Best Fuel-Efficient Cars For Travel This Summer - AOL

    www.aol.com/7-best-fuel-efficient-cars-160051801...

    “For families or those requiring more space, the Niro offers a better driving position and lots of cargo space with fuel economy figures of 52 mpg in the city and 49 mpg on the highway ...

  9. Combustion efficiency - Wikipedia

    en.wikipedia.org/wiki/Combustion_efficiency

    Combustion efficiency refers to the effectiveness of the burning process in converting fuel into heat energy. It is measured by the proportion of fuel that is efficiently burned and converted into useful heat, while minimizing the emissions of pollutants. [1] [2] Specifically, it may refer to: fuel efficiency; engine efficiency