General Studies · IC Engine Lubrication System
Which additive prevents engine oil from forming wax crystals and becoming immobile in extreme cold weather?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Viscosity index improver
- 2Antioxidant
- 3Foam inhibitor
- 4Pour point depressant✓
Correct answer
Pour point depressant
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