General Studies · IC Engine Lubrication System
What functional benefit is achieved by adding Viscosity Index Improvers (VII) into modern multigrade engine oils?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Significantly increasing the oil temperature at startup
- 2Attenuating the drop in oil viscosity as temperature rises✓
- 3Promoting rapid solid crystallization at low temperatures
- 4Altering the aesthetic color of the lubricant
Correct answer
Attenuating the drop in oil viscosity as temperature rises
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