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  2. Antiknock agent - Wikipedia

    en.wikipedia.org/wiki/Antiknock_agent

    An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature and pressure at which auto ...

  3. Tetraethyllead - Wikipedia

    en.wikipedia.org/wiki/Tetraethyllead

    Antiknock agents allow the use of higher compression ratios for greater efficiency [22] and peak power. [23] Adding varying amounts of additives to gasoline allowed easy, inexpensive control of octane ratings. TEL offered the business advantage of being commercially profitable because its use for this purpose could be patented. [16]

  4. Tetramethyllead - Wikipedia

    en.wikipedia.org/wiki/Tetramethyllead

    Tetramethyllead, also called tetra methyllead and lead tetramethyl, is a chemical compound used as an antiknock additive for gasoline. [1] Its use is being phased out for environmental considerations. [2] The National Institute for Occupational Safety and Health (NIOSH) in the United States has identified tetramethyllead as a potential ...

  5. 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.

  6. Methyl tert-butyl ether - Wikipedia

    en.wikipedia.org/wiki/Methyl_tert-butyl_ether

    In the U.S. MTBE has been used in gasoline at low levels since 1979, replacing tetraethyllead (TEL) as an antiknock (octane rating) additive to prevent engine knocking. [16] Oxygenates also help gasoline burn more completely, reducing tailpipe emissions. Oxygenates also dilute or displace gasoline components such as aromatics (e.g., benzene ...

  7. Methylcyclopentadienyl manganese tricarbonyl - Wikipedia

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

    Methylcyclopentadienyl manganese tricarbonyl (MMT or MCMT) is an organomanganese compound with the formula (C 5 H 4 CH 3)Mn(CO) 3.Initially marketed as a supplement for use in leaded gasoline, MMT was later used in unleaded gasoline to increase the octane rating.

  8. N-Methylaniline - Wikipedia

    en.wikipedia.org/wiki/N-Methylaniline

    N-Methylaniline is a principal component of NMA (monomethylaniline), a non-traditional antiknock agent increasingly used by petroleum refiners and fuel distributors around the world to increase the octane number of gasoline petrol.

  9. Category:Antiknock agents - Wikipedia

    en.wikipedia.org/wiki/Category:Antiknock_agents

    Pages in category "Antiknock agents" The following 9 pages are in this category, out of 9 total. This list may not reflect recent changes. ...

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