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  2. Antiknock agent - Wikipedia

    en.wikipedia.org/wiki/Antiknock_agent

    However, "lead substitute" products are also produced and can sometimes [when?] be found [by whom?] at auto parts stores [example needed]. [citation needed] Gasoline, as delivered at the pump, also contains additives to reduce internal engine carbon buildups, improve combustion, and to allow easier starting in cold climates.

  3. List of gasoline additives - Wikipedia

    en.wikipedia.org/wiki/List_of_gasoline_additives

    Fuel additives in the United States are regulated under section 211 of the Clean Air Act (as amended in January 1995). The Environmental Protection Agency (EPA) requires the registration of all fuel additives which are commercially distributed for use in highway motor vehicles in the United States, [8] and may require testing and ban harmful additives.

  4. Tetraethyllead - Wikipedia

    en.wikipedia.org/wiki/Tetraethyllead

    Tetraethyllead (commonly styled tetraethyl lead), abbreviated TEL, is an organolead compound with the formula Pb(C 2 H 5) 4.It was widely used as a fuel additive for much of the 20th century, first being mixed with gasoline beginning in the 1920s.

  5. Methylcyclopentadienyl manganese tricarbonyl - Wikipedia

    en.wikipedia.org/wiki/Methylcyclopentadienyl...

    Although initially marketed in 1958 as a smoke suppressant for gas turbines, MMT was further developed as an octane enhancer in 1974. When the United States Environmental Protection Agency (EPA) ordered the phase out of TEL in gasoline in 1973, new fuel additives were sought. TEL has been used in certain countries as an additive to increase the ...

  6. Ethyl Corporation - Wikipedia

    en.wikipedia.org/wiki/Ethyl_Corporation

    Sign advertising Ethyl additive, on an antique gasoline pump in the USA. Ethyl Corporation is a fuel additive company headquartered in Richmond, Virginia, in the United States. The company is a distributor of fuel additives. Among other products, Ethyl Corporation distributes tetraethyl lead, an additive used to make leaded gasoline.

  7. Methyl tert-butyl ether - Wikipedia

    en.wikipedia.org/wiki/Methyl_tert-butyl_ether

    An alternative to ethanol is ETBE, which is manufactured from ethanol and isobutene. Its performance as an additive is similar to MTBE, but due to the higher price of ethanol compared to methanol, it is more expensive. Higher quality gasoline is also an alternative, so that additives such as MTBE are unnecessary. Iso-octane itself is used. MTBE ...

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