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List of gasoline additives

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Gasoline additives may increase gasoline's octane rating, thus allowing the use of higher compression ratios for greater efficiency and power, or act as corrosion inhibitors or as lubricants. Other additives include metal deactivators, oxygenates and antioxidants.

Some additives are harmful and are regulated or banned in some countries.

Fictional additives

Additives

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Oxygenates

Alcohols

Ethers

Antioxidants, stabilizers

Detergents

Fuel detergents combine a low molecular weight polymer "tail" with a polar "head" group such as the amine group.[4]

  • Polybuteneamine (PBA), also known as polybutylene amine.
  • Polyisobuteneamine (PIBA), also known as polyisobutylene amine. Some sources inaccurately refer to PIBA as "polyisobutylene" (PIB). While PIBA is derived from PIB, the amine group require for detergent power renders it a different molecule.
  • Polyetheramine (PEA), formerly a proprietary component in Techron. Patent has since expired. See also polyether.

Antiknock agents

Metal-based:

Metal-free:

Lead scavengers (for leaded gasoline)

Fuel dyes

most common:

Fuel additives in general

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Racing formulations

Legislation

United States

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,[6] and may require testing and ban harmful additives. The EPA also regularly reviews the health and net economic benefits of Clean Air Act policies.[7]

The act also requires deposit control additives (DCAs) be added to all petrol. This type of additive is a detergent additive that acts as a cleansing agent in small passages in the carburetor or fuel injectors. This in turn serves to ensure a consistent air and fuel mixture that will contribute to better gas mileage.

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See also

References

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