Avgas
Aviation fuel
Summary
Avgas is an aviation fuel used in aircraft with spark-ignited internal combustion engines. Avgas is distinguished from conventional gasoline (petrol) used in motor vehicles, which is termed mogas in an aviation context. Unlike motor gasoline, which has been formulated without lead since the 1970s to allow the use of catalytic converters for pollution reduction, the most commonly used grades of avgas still contain tetraethyl lead, a toxic lead-containing additive used to aid in lubrication of the engine, increase octane rating, and prevent engine knocking (spark-knock). There are ongoing efforts to reduce or eliminate the use of lead in aviation gasoline.
Originally created by 141.37.197.118
3/3/2003, 3:04:18 AM
Modified
5/8/2026, 5:36:08 AM
Recent revisions
/* Automotive gasoline */ missing period
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Removed sentence breifly mentioning the grades of avgas. This is discussed in the "Grades" section.
Removed un-cited sentence claiming that manufacturers use the minimum amount of lead due to it's toxicity. This is a claim that needs evidence prior to inclusion, otherwise the assumption should be that the amount of lead is based on the official specs.
possessive noun
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cellpadding not needed when wikitable
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Reverted edits by [[Special:Contributions/46.13.142.171|46.13.142.171]] ([[User talk:46.13.142.171|talk]]): unexplained content removal ([[WP:HG|HG]]) (3.4.13)
/* Properties */
British English is the term that we use.
Undid revision [[Special:Diff/1304903751|1304903751]] by [[Special:Contributions/Chat-qui-Aboie|Chat-qui-Aboie]] ([[User talk:Chat-qui-Aboie|talk]])unnecessary detail
Updated short description
Reverted 2 edits by [[Special:Contributions/2603:6081:407:C700:C1D8:D893:24C8:A1C4|2603:6081:407:C700:C1D8:D893:24C8:A1C4]] ([[User talk:2603:6081:407:C700:C1D8:D893:24C8:A1C4|talk]]): Unsourced
/* Other uses */
/* UL100E */
Same as previous
