General Studies · IC Engines Lubrication
During the manufacturing/refining process of lubricating oil, which of the following is NOT a purpose of the refining steps?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Dewaxing to improve low-temperature fluidity
- 2Complete mixing of heavy impurities uniformly so that they remain in the final product✓
- 3Finishing to improve oxidation and heat stability
- 4Removal of aromatics and polar compounds to improve viscosity-temperature characteristics
Correct answer
Complete mixing of heavy impurities uniformly so that they remain in the final product
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