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KCK infographic explaining why gear oil gets hot, covering friction, sliding contact, load, towing, heat, oxidation and severe-duty lubrication.
4WD Gear Oil

Why Does Gear Oil Get So Hot?

Your differential doesn't need to be broken to be cooking its oil. Discover where gear-oil heat comes from, how friction, sliding contact, load and towing affect lubricant life, and why the right f...