Bioethanol Fuel Advantages
High quality, potent fuel
Compared to 98-octane gasoline, 104-octane E85 creates higher bhp
Offers greater resistance against knocking
Enables more efficient and optimal combustion

In theory, all fuel-driven vehicles have a fuel economy (measured as miles per US gallon, or liters per 100 km) that is directly proportional to the fuel's energy content.[43] In reality, there are many other variables that come into play that affect the performance of a particular fuel in a particular engine. Ethanol contains approx. 34% less energy per unit volume than gasoline, and therefore in theory, burning pure ethanol in a vehicle will result in a 34% reduction in miles per US gallon , given the same fuel economy, compared to burning pure gasoline. Since ethanol has a higher octane rating, the engine can be made more efficient by raising its compression ratio. In fact using a variable turbocharger, the compression ratio can be optimized for the fuel being used, making fuel economy almost constant for any blend. .[21][22] For E10 (10% ethanol and 90% gasoline), the effect is small (~3%) when compared to conventional gasoline,[44] and even smaller (1-2%) when compared to oxygenated and reformulated blends.[45] However, for E85 (85% ethanol), the effect becomes significant. E85 will produce lower mileage than gasoline, and will require more frequent refueling. Actual performance may vary depending on the vehicle. Based on EPA tests for all 2006 E85 models, the average fuel economy for E85 vehicles resulted 25.56% lower than unleaded gasoline.[46] The EPA-rated mileage of current USA flex-fuel vehicles[47] should be considered when making price comparisons, but it must be noted that E85 is a high performance fuel, with an octane rating of about 104, and should be compared to premium. In one estimate[48] the US retail price for E85 ethanol is 2.62 US dollar per gallon or 3.71 dollar corrected for energy equivalency compared to a gallon of gasoline priced at 3.03 dollar. Brazilian cane ethanol (100%) is priced at 3.88 dollar against 4.91 dollar for E25 (as July 2007).

tdusko: Kad smo vec kod Nemacke, tamo se od danas prodaje nova vrsta benzina koja sadrzi 10% bioetanola. Taj benzin ne moze u sva vozila koja se hrane benzinom da se sipa pa nije lose da ako se neko zaputi tamo da se informise o tome da li u njegov auto moze da se sipa to gorivo ili ne. Pratim malo nemacke medije i oni trube o tome zadnjih dva meseca valjda.

tdusko
Ivane, jesi li probao da sipas taj benzin u tvoj auto? Bas me interesuje da li se oseca manje snage.

Based on EPA tests for all 2006 E85 models, the average fuel economy for E85 vehicles resulted 25.56% lower than unleaded gasoline

Ivan Dimkovic: Verovatno vozila koja su dizajnirana da koriste takvo gorivo imaju manji skok u potrosnji - ali problem su vozila koja nisu uopste predvidjena za takvo gorivo.

A u tom slucaju (vozilo koje nije predvidjeno ni za veci oktanski broj od 95 + vozilo koje nije dizajnirano da prihvata E10) ne samo da nemas dobitak u izlaznoj snazi - vec imas i skok potrosnje + povecano habanje motora zbog hemijskog sastava tog "zelenog" goriva.

goriva koje umesto etanola sadrzi alkohol.

grozda: Uskoro ce poceti prodaja E10++ goriva koje umesto etanola sadrzi alkohol. Ovo ce biti apsolutno zeleno gorivo i moci ce da se koristi u svim automobilima. Obzirom da sadrzi alkohol i da je veoma cisto BIO gorivo, moci ce da se koristi i za pice Sta li sve nece da izmisle, E10, E85 ... sve mi lici na obican marketing.

vladd: Problem je sto nakon nekoliko dana u rezervoaru, taj E85 postaje E75 sa 10% vode...

Ethanol fuel mixtures have "E" numbers which describe the percentage of ethanol in the mixture by volume, for example, E85 is 85% anhydrous ethanol and 15% gasoline.

As a general term, a substance is said to be anhydrous if it contains no water.

miloshzorica: ja se prosto do imbecilnosti divim toj environmentalist i green gamadi