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One GGE of natural gas is 126.67 cubic feet (3.587 m 3) at standard conditions. This volume of natural gas has the same energy content as one US gallon of gasoline (based on lower heating values: 900 BTU/cu ft (9.3 kWh/m 3) of natural gas and 114,000 BTU/US gal (8.8 kWh/L) for gasoline). [22]
Hydrogen at atmospheric pressure has an energy density of 120 MJ/kg (113,738 BTU/kg), [88] by converting this energy density to a GGE, it is found that 1.011 kg of hydrogen is needed to meet the equivalent energy of one gallon of gasoline. This conversion factor can now be used to calculate the MPGe for this vehicle.
When burned, one liter (0.26 U.S. gal) of gasoline emits about 2.3 kilograms (5.1 lb) of CO 2, a greenhouse gas, contributing to human-caused climate change. [ 87 ] [ 88 ] Oil products, including gasoline, were responsible for about 32% of CO 2 emissions worldwide in 2021.
gallon (imperial) gal (imp) ≡ 4.546 09 L: ≡ 4.546 09 × 10 −3 m 3: gallon (US dry) gal (US) ≡ 1 ⁄ 8 bu (US lvl) = 4.404 883 770 86 × 10 −3 m 3: gallon (US fluid; Wine) gal (US) ≡ 231 cu in ≡ 3.785 411 784 × 10 −3 m 3: gill (imperial); Noggin: gi (imp); nog ≡ 5 fl oz (imp) = 142.065 3125 × 10 −6 m 3: gill (US) gi (US ...
The program covered model year 2012 to model year 2016 and ultimately required an average fuel economy standard of 35.5 miles per US gallon (6.63 L/100 km; 42.6 mpg ‑imp) in 2016 (of 39 miles per gallon for cars and 30 mpg for trucks), a jump from the 2009 average for all vehicles of 25 miles per gallon. Obama said, "The status quo is no ...
To reduce mass, the engines are compact in all directions, made almost entirely of aluminum, and feature composite intake manifolds. This removes 44 pounds (20 kg) from the existing 1.4-liter turbo in the Cruze and makes it 8 pounds (4 kg) lighter than the 1.4-liter VW turbo. GM says this engine weighs 216 pounds (98 kg), ready for installation.
At 243 kilograms (535 lb) (1959 with aluminum intake), it took 0.86 kilograms (1.9 lb) of engine weight to make 0.75 kilowatts (1 hp). [ 62 ] In the 1950s, oil refineries started to focus on high octane fuels, and then detergents were added to gasoline to clean the jets in carburetors.
In early 2020 the gas price has dropped down to a national average of $1.73 a gallon. [11] In 2021, the average price increased to $3.01/gallon. [12] By the end of June 2022, the price of gasoline reached a record high of over $5/gallon with some places reporting $6/gallon. [13]