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E10, a fuel mixture of 10% anhydrous ethanol and 90% gasoline sometimes called gasohol, can be used in the internal combustion engines of most modern automobiles and light-duty vehicles without need for any modification on the engine or fuel system. E10 blends are typically rated as being 2 to 3 octane numbers higher than regular gasoline and ...
Ethanol-blended fuel is widely used in Brazil, the United States, and Europe (see also Ethanol fuel by country). [2] Most cars on the road today in the U.S. can run on blends of up to 15% ethanol, [6] and ethanol represented 10% of the U.S. gasoline fuel supply derived from domestic sources in 2011. [2]
The presence of these degradation products in the fuel tank or fuel lines plus a carburetor or fuel injection components makes it harder to start the engine or causes reduced engine performance [22] On resumption of regular engine use, the buildup may or may not be eventually cleaned out by the flow of fresh gasoline. The addition of a fuel ...
A petrol engine (gasoline engine in American and Canadian English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as E10 and E85). They may be designed to run on petrol with a higher octane rating, as sold at ...
The 3-carbon alcohol, propanol (C 3 H 7 OH), is not often used as a direct fuel source for petrol engines (unlike ethanol, methanol and butanol), with most being directed into use as a solvent. However, it is used as a source of hydrogen in some types of fuel cell; it can generate a higher voltage than methanol, which is the fuel of choice for ...
Whereas age-degraded gasoline may simply polymerize, evaporate, and thus lose its flammability, age-degraded gasoline-ethanol blends can cause severe damage if allowed to sit in an engine. Automotive engines addressed this with the mandated shift over to ethanol-tolerant metals and seals, and with the use of smart electronic fuel injection ...
By early 2013, about 11 million E85 flex-fuel cars and light trucks were in operation, [10] [11] though actual use of E85 fuel was limited, because the ethanol fueling infrastructure was limited. [46] As of 2005, 68% of American flex-fuel car owners were not aware they owned an E85 flex. [12] [13] Flex and non-flex vehicles looked the same ...
The first letter indicated the vehicle for which the gasoline was intended, the number indicated the octane. Gasolines A-56 and A-66, A-70, and later A-72, were intended for cars with flat-head engines produced in the 1930s-1960s. Gasolines A-74, later A-76 and AI-93 for cars with overhead valve engines produced in the 1960s-1980s.