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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 ...
In the United States, to realize equivalent fuel economy at the pump with an FFV, the price of E85 must be much lower than gasoline. E85 was at least 20% less expensive in most areas as recently as 2011. In one US test, a 2007 Chevy Tahoe FFV averaged 18.3 MPG (U.S. gallons) for gasoline and 13.5 MPG for E85, 26.5% worse than gasoline.
In the early years, steam engines and electric motors were tried, but with limited success. In the 20th century, the internal combustion engine (ICE), became dominant. In 2015, the internal combustion engine remains the most widely used but a resurgence of electricity seems likely because of increasing concern about ic engine exhaust gas emissions.
A gasoline engine burns a mix of gasoline and air, consisting of a range of about twelve to eighteen parts (by weight) of air to one part of fuel (by weight). A mixture with a 14.7:1 air/fuel ratio is stoichiometric, that is when burned, 100% of the fuel and the oxygen are consumed.
The price of gasoline varies considerably between the summer and winter months. [100] There is a considerable difference between summer oil and winter oil in gasoline vapor pressure (Reid Vapor Pressure, RVP), which is a measure of how easily the fuel evaporates at a given temperature.
You can argue that tires are a car's foremost important safety and performance feature, but all the basic components are equally critical. If one fails, the vehicle becomes unusable and costs you
If you want your ride to get the lowest cost per mile, your best bet is to drive a low-cost economy car. iSeeCars.com has rounded up the least expensive gasoline cars per 1,000 miles driven, and ...
A diesel cycle engine can be as much as 40% to 50% efficient at converting fuel into work, [2] where a typical automotive gasoline engine's efficiency is about 25% to 30%. [3] [4] In general, an engine is designed to run on a single fuel source and substituting one fuel for another may affect the thermal efficiency.
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