Gasoline additive

Gasoline additives increase gasoline's octane rating or act as antioxidants.

Additives

• Oxygenates
  • Alcohols:
    • Methanol (MeOH)
    • Ethanol (EtOH)
    • Isopropyl alcohol (IPA)
    • n-butanol (BuOH)
    • Gasoline grade t-butanol (GTBA)
  • Ethers:
    • Methyl tert-butyl ether (MTBE)
    • Tertiary amyl methyl ether (TAME)
    • Tertiary hexyl methyl ether (THEME)
    • Ethyl tertiary butyl ether (ETBE)
    • Tertiary amyl ethyl ether (TAEE)
    • Diisopropyl ether (DIPE)

• Antioxidants, stabilizers
  • Butylated hydroxytoluene (BHT)
  • 2,4-Dimethyl-6-tert-butylphenol
  • 2,6-Di-tert-butylphenol (2,6-DTBP)
  • Phenylene diamine
  • Ethylene diamine

• Antiknock agents
  • Tetra-ethyl lead
  • Methylcyclopentadienyl manganese tricarbonyl (MMT)
  • Ferrocene
  • Iron pentacarbonyl
  • Toluene
  • Isooctane

• Lead scavengers (for leaded gasoline)
  • Tricresyl phosphate (TCP) (also an AW additive and EP additive)
  • 1,2-Dibromoethane
  • 1,2-Dichloroethane

• Fuel dyes, most common:
  • Solvent Red 24
  • Solvent Red 26
  • Solvent Yellow 124
  • Solvent Blue 35

• Others
  • Nitromethane (increases engine power, "nitro")
  • Acetone (vaporization additive, mainly used with methanol racing fuel to improve vaporisation at start up)
  • diesel fuel injectors)
  • Ferox (catalyst additive that increases fuel economy, cleans engine, lowers emission of pollutants, prolongs engine life)
  • Ferrous picrate (improves combustion, increases mileage)
  • anti-foaming agents for diesel, damage oxygen sensors in gasoline engines)

See also

• For additive metering see metering pumps

External links

SFR Corporation - Manufacturer of gasoline and other fuel additives
Centron Fuel Additive