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Fuel economy at various driving speeds. Maintaining an efficient speed is an important factor in fuel efficiency. [9] [10] Optimal efficiency can be expected while cruising at a steady speed and with the transmission in the highest gear (see Choice of gear, below). The optimal speed varies with the type of vehicle, although it is usually ...
A standard lightweight, moderate-speed bicycle is one of the most energy-efficient forms of transport. Compared with walking, a 64 kg (140 lb) cyclist riding at 16 km/h (10 mph) requires about half the food energy per unit distance: 27 kcal/km, 3.1 kWh (11 MJ) per 100 km, or 43 kcal/mi. [ 15 ] This converts to about 732 mpg ‑US (0.321 L/100 ...
The "highway" program or Highway Fuel Economy Driving Schedule (HWFET) is defined in 40 CFR 600.I and uses a warmed-up engine and makes no stops, averaging 48 mph (77 km/h) with a top speed of 60 mph (97 km/h) over a 10-mile (16 km) distance. A weighted average of city (55%) and highway (45%) fuel economies is used to determine the combined ...
The Forte is far from the best or most exciting vehicle in its segment, but it does offer a long standard features list, reasonable pricing, and impressive fuel economy with its base powertrain ...
Most fuel-efficient option: 2.7-liter V6/RWD/10-speed automatic This concept highlights trailering technologies available on the 2019 Silverado 1500 designed to enhance trailering confidence ...
The General used Department of Energy data to identify the top 15 most fuel-efficient hybrids in the U.S. ... which is used for lower-power functions such as driving at slower speeds and idling ...
The gas turbine is most efficient at maximum power output in the same way reciprocating engines are most efficient at maximum load. The difference is that at lower rotational speed the pressure of the compressed air drops and thus thermal and fuel efficiency drop dramatically. Efficiency declines steadily with reduced power output and is very ...
Some vehicles from other countries have better fuel economy. ... 0.9 L/100 km (310 mpg ‑imp; 260 mpg ‑US) on the New European Driving ... Highest top speed ...