Gear oil

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Notion

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Science and technology

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What Wikipedia says

Gear oil is a lubricant made specifically for transmissions, transfer cases, and differentials in automobiles, trucks, and other machinery. It has high viscosity and usually contains organosulfur compounds.

Excerpt from the Wikipedia article “Gear oil”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: User:Kolossos, CC BY-SA 3.0, via Wikimedia Commons.