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- Q351216 subject Q7332758.
- Q351216 subject Q8280318.
- Q351216 subject Q8481818.
- Q351216 abstract "Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery. It is of a higher viscosity to better protect the gears and usually is associated with a strong sulfur smell. The high viscosity ensures transfer of lubricant throughout the gear train. This is necessary since the devices needing this heavy oil do not have pumps for transferring the oil with only a portion of the lowermost gears bathed in an oil sump. This heavy oil can create viscous drag leading to inefficiencies in vehicle operation. Some modern automatic transaxles (integrated transmission and differential) do not use a heavy oil at all but lubricate with the lower viscosity hydraulic fluid, which is available at pressure within the automatic transmission.Most lubricants for manual gearboxes and differentials contain extreme pressure (EP) additives and antiwear additives to cope with the sliding action of hypoid bevel gears.EP additives which contain phosphorus/sulfur compounds are corrosive to yellow metals such as the copper and/or brass used in bushings and synchronizers; the GL1 class of gear oils does not contain any EP additives and thus finds use in applications which contain parts made of yellow metals.GL-5 is not necessarily backward-compatible in synchro-mesh transmissions which are designed for a GL-4 oil: GL-5 has a lower coefficient of friction due to the higher concentration of EP additives over GL-4, and thus synchros can not engage as effectively. Also, transmissions which explicitly call for GL-4 oil may have been designed around this lower concentration of EP additives and thus may contain yellow metal parts which GL-5 will corrode.".
- Q351216 thumbnail Gear_oil_change_scooter.jpg?width=300.
- Q351216 wikiPageWikiLink Q1275603.
- Q351216 wikiPageWikiLink Q128709.
- Q351216 wikiPageWikiLink Q1420.
- Q351216 wikiPageWikiLink Q1425059.
- Q351216 wikiPageWikiLink Q143873.
- Q351216 wikiPageWikiLink Q16259746.
- Q351216 wikiPageWikiLink Q1641343.
- Q351216 wikiPageWikiLink Q193137.
- Q351216 wikiPageWikiLink Q193784.
- Q351216 wikiPageWikiLink Q1989621.
- Q351216 wikiPageWikiLink Q2141173.
- Q351216 wikiPageWikiLink Q2232867.
- Q351216 wikiPageWikiLink Q323840.
- Q351216 wikiPageWikiLink Q4655165.
- Q351216 wikiPageWikiLink Q466043.
- Q351216 wikiPageWikiLink Q4883312.
- Q351216 wikiPageWikiLink Q657936.
- Q351216 wikiPageWikiLink Q682.
- Q351216 wikiPageWikiLink Q7332758.
- Q351216 wikiPageWikiLink Q82580.
- Q351216 wikiPageWikiLink Q8280318.
- Q351216 wikiPageWikiLink Q843592.
- Q351216 wikiPageWikiLink Q8481818.
- Q351216 wikiPageWikiLink Q902134.
- Q351216 comment "Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery. It is of a higher viscosity to better protect the gears and usually is associated with a strong sulfur smell. The high viscosity ensures transfer of lubricant throughout the gear train. This is necessary since the devices needing this heavy oil do not have pumps for transferring the oil with only a portion of the lowermost gears bathed in an oil sump.".
- Q351216 label "Gear oil".
- Q351216 depiction Gear_oil_change_scooter.jpg.