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EPA HWFET driving cycle. The "highway" program or Highway Fuel Economy Driving Schedule (HWFET) is defined in 40 CFR 600.I. [10] It 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. The following are some characteristic parameters of the cycle:
Chevrolet Volt in full electric mode uses 36 kilowatt-hours per 100 miles (810 kJ/km; 94 mpg‑e), meaning it may approach or exceed the energy efficiency of walking if the car is fully occupied with 4 or more passengers, although the relative emissions produced may not follow the same trends if analysing environmental impacts.
Specifically, for driving at an average of 60 kilometres per hour (37 mph), approximately 33% of the energy goes into exhaust and 29% is used to cool the engine; engine friction takes another 11%. The remaining 21% is split between rolling friction of tires (11%), air drag (5%), and braking (5%). [ 6 ]
Notes: All estimated fuel economy based on 15,000 miles (24,000 km) annual driving, 45% highway and 55% city (1) Conversion 1 gallon of gasoline=33.7 kW·h. (2) The 2014 i3 REx is classified by EPA as a series plug-in hybrid, while for CARB is a range-extended battery-electric vehicle (BEVx). The i3 REx is the most fuel economic EPA-certified ...
New vehicles sold in the U.S. will have to average about 38 miles per gallon of gasoline in 2031 in real-world driving, up from about 29 mpg this year, under new federal rules unveiled Friday by ...
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]
Government-mandated fuel efficiency measurements generally have two regimens or driving cycle patterns: a city or urban cycle, and an highway or extra-urban cycle. In Europe, the two standard measuring cycles for "L/100 km" value are motorway travel at 90 km/h and rush hour city traffic.
Charitable mileage rate: 14 cents per mile driven while volunteering for a qualified charitable organization. Parking fees and tolls are also deductible. Parking fees and tolls are also deductible ...
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