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The octane rating of n-butanol is similar to that of gasoline but lower than that of ethanol and methanol. n-Butanol has a RON (Research Octane number) of 96 and a MON (Motor octane number) of 78 (with a resulting "(R+M)/2 pump octane number" of 87, as used in North America) while t-butanol has octane ratings of 105 RON and 89 MON.
The country produces a total of 18 billion litres (4.8 billion gallons) annually, of which 3.5 billion liters are exported, 2 billion of them to the U.S. [15] Alcohol cars debuted in the Brazilian market in 1979 and became quite popular because of a heavy subsidy, but in the 1980s prices rose and gasoline regained the leading market share. [16]
Butanol at 85 percent strength can be used in cars designed for gasoline without any change to the engine (unlike 85% ethanol), and it provides more energy for a given volume than ethanol, almost as much as gasoline. Therefore, a vehicle using butanol would return fuel consumption more comparable to gasoline than ethanol. Butanol can also be ...
Butanol at 85 percent concentration can be used in cars designed for gasoline (petrol) without any change to the engine (unlike 85% ethanol), and it contains more energy for a given volume than ethanol and almost as much as gasoline, and a vehicle using butanol would return fuel consumption more comparable to gasoline than ethanol. Butanol can ...
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For each billion ethanol-equivalent gallons of fuel produced and combusted in the US, the combined climate-change and health costs are $469 million for gasoline, $472–952 million for corn ethanol depending on biorefinery heat source (natural gas, corn stover, or coal) and technology, but only $123–208 million for cellulosic ethanol ...
If you're in the market for a new car, keep in mind that sticker prices don't include the cost of gas mileage -- or maintenance. Sometimes a set of wheels with a modest price tag can be among the ...
You're theoretically getting a "carbon-neutral" car with much more range than a pure EV -- Nissan is aiming for 497 miles on a tank where even the best Tesla Model S runs out of power at 294 miles.