General Studies · IC Engine Lubrication System
Why are pour point depressants added to automotive engine lubricants?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To keep the oil fluid and prevent wax crystallization at low temperatures✓
- 2To inhibit the formation of surface foam due to churning
- 3To form a protective layer on iron surfaces for rust prevention
- 4To permanently alter the optical color profile of the oil
Correct answer
To keep the oil fluid and prevent wax crystallization at low temperatures
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