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2. Gear oil - Wikipedia

   en.wikipedia.org/wiki/Gear_oil

   The viscometrics for gear oils are standardized in SAE J306. Multigrade gear oils are becoming more common; while gear oil does not reach the temperatures of motor oil, it does warm up appreciably as the car is driven, due mostly to shear friction (with a small amount of heat conduction through the bellhousing from the engine block).

3. Extreme pressure additive - Wikipedia

   en.wikipedia.org/wiki/Extreme_pressure_additive

   Methylenebis(dibutyldithiocarbamate) is an additive in some extreme pressure gear oils, serving as an antioxidant and protecting metal surfaces. [ 1 ] The early extreme pressure additives were based on lead salts of fatty acids ("lead soaps "), "active sulfur" compounds (e.g. thiols and elementary sulfur), and chlorinated compounds.

4. NAPA Auto Parts - Wikipedia

   en.wikipedia.org/wiki/NAPA_Auto_Parts

   NAPA also sponsors Ron Capps in the NHRA Mello Yello Drag Racing Series; they have remained a sponsor since 2007. [8] The company has previously sponsored Michael Waltrip from 2001 to 2009 and Martin Truex Jr. from 2010 until 2013 when Truex and the Michael Waltrip Racing team were implicated in a race manipulation scandal at the 2013 Federated ...

5. SAE J300 - Wikipedia

   en.wikipedia.org/wiki/SAE_J300

   The SAE has a separate viscosity rating system for gear, axle, and manual transmission oils, SAE J306, which should not be confused with engine oil viscosity. The higher numbers of a gear oil (e.g., 75W-140) does not mean that it has higher viscosity than an engine oil 20W-50.

6. Category:Gear oils - Wikipedia

   en.wikipedia.org/wiki/Category:Gear_oils

   Gear oil; H. Hydraulic fluid; S. SAE J306 This page was last edited on 18 July 2008, at 17:30 (UTC). Text is available under the Creative ...

7. SAE J306 - Wikipedia

   en.wikipedia.org/wiki/SAE_J306

   SAE J306 is a standard that defines the viscometric properties of automotive gear oils.It is maintained by SAE International. [1] Key parameters for this standard are the kinematic viscosity of the gear oil, the maximum temperature at which the oil has a viscosity of 150,000 cP, and a measure of its shear stability through the KRL test.