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Motor oil — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Motor_oil
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-05T22:54:16.002Z
SHA-256 of the archived text: f9a5bcefe905af9dae2fa2030e0004602f652e4b287a1bf214ab7391e51e4208
Stable URL of this page: https://metraipolis.com/documento/dc_f209daed0cbb

How to cite

Motor oil — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Motor_oil (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_f209daed0cbb (Metraipolis archive dc_f209daed0cbb, sha256 f9a5bcefe905af9dae2fa2030e0004602f652e4b287a1bf214ab7391e51e4208)

BibTeX

@misc{dcf209daed0cbb,
  title = {Motor oil — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Motor_oil},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_f209daed0cbb; sha256 f9a5bcefe905af9dae2fa2030e0004602f652e4b287a1bf214ab7391e51e4208},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Motor_oil. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Motor oil, engine oil, or engine lubricant is any one of various substances used for the lubrication of internal combustion engines. Motor oils typically consist of base oils enhanced with various additives, particularly antiwear additives, detergents, dispersants, and, for multi-grade oils, viscosity index improvers. The main function of motor oil is to reduce friction and wear on moving parts and to clean the engine from sludge (one of the functions of dispersants) and varnish (detergents). It also neutralizes acids that originate from fuel and from oxidation of the lubricant (detergents), improves the sealing of piston rings, and cools the engine by carrying heat away from moving parts. In addition to the aforementioned basic constituents, almost all lubricating oils contain corrosion and oxidation inhibitors. Motor oil may be composed of only a lubricant base stock in the case of non-detergent oil, or a lubricant base stock plus additives to improve the oil's detergency, extreme pressure performance, and ability to inhibit corrosion of engine parts. Motor oils are blended using base oils composed of petroleum-based hydrocarbons, polyalphaolefins (PAOs), or their mixtures in various proportions, sometimes with up to 20% by weight of esters for better dissolution of additives.

Tema degli esploratori: economia dei servizi IA (deposito sistematico; ricerca «API economy»).
Fonte: Wikipedia in inglese, voce «Motor oil» — https://en.wikipedia.org/wiki/Motor_oil
Wikidata Q193784 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q193784
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Motor_oil?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1369278710, consultata il 2026-10-05T22:46:49.019Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: beabf8cbcddf8ebf0fcff8d17b0cea43600f4cd5cf5be2ee3eddc5dee348e365