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  2. List of U.S. states by standard octane ratings - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._states_by...

    All states require gas pumps to be labeled with the correct octane level and nearly all states do regular testing to make sure gas stations are in compliance. A minimum 82 octane fuel is recommended for most vehicles produced since 1984. Older cars with carburetors could operate with lower octane fuel at higher elevations. Regardless of ...

  3. Octane rating - Wikipedia

    en.wikipedia.org/wiki/Octane_rating

    Motor Gasoline Regular (marketed as "Petrol") which has RON 80 rating, and Motor Gasoline Premium (marketed as "Octane") which has RON 95 rating. [46] Petrol stations in Bangladesh are privatised, but the prices are regulated by the authorities and have a fixed price at BDT 86.00 (US$1.04) and BDT 89.00 (US$1.07) (as of 1 March 2018) per litre ...

  4. Parts washer - Wikipedia

    en.wikipedia.org/wiki/Parts_washer

    Parts washers were originally developed for use in automotive transmission and engine repair shops as a way to improve the function of simple soak tanks.Soak tanks are vats filled with a mixture of water and detergent, which take hours to "soften" the built-up road grime, fluids, tars and oils enough to be manually rinsed off prior to disassembly and repair.

  5. Top Tier Detergent Gasoline - Wikipedia

    en.wikipedia.org/wiki/Top_Tier_Detergent_Gasoline

    Gasoline marketers agree when they sign on to Top Tier program that all their grades of gasoline meet these standards. [10] However, premium grade gasoline may have yet higher levels of detergent additives. [11] Typically, Top Tier gasoline will contain two to three times the amount of detergent additives currently required by the EPA. [12]

  6. Engine efficiency - Wikipedia

    en.wikipedia.org/wiki/Engine_efficiency

    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.

  7. Common ethanol fuel mixtures - Wikipedia

    en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures

    The use of ethanol blends in conventional gasoline vehicles is restricted to low mixtures, as ethanol-gasoline is corrosive and can degrade some of the materials in the engine and fuel system. Also, the engine has to be adjusted for a higher compression ratio as compared to a pure gasoline engine to take advantage of ethanol's higher oxygen ...

  8. Gas engine - Wikipedia

    en.wikipedia.org/wiki/Gas_engine

    A gas engine differs from a petrol engine in the way the fuel and air are mixed. A petrol engine uses a carburetor or fuel injection. but a gas engine often uses a simple venturi system to introduce gas into the air flow. Early gas engines used a three-valve system, with separate inlet valves for air and gas.

  9. Ward's 10 Best Engines - Wikipedia

    en.wikipedia.org/wiki/Ward's_10_Best_Engines

    Wards 10 Best Engines is an annual list of the ten "best" automobile engines available in the U.S. market, that are selected by Wards AutoWorld magazine. The list was started in 1994 for model year 1995, and has been drawn every year since then, published at the end of the preceding year.