You are here

Home

List the additives of Lubricant used in S.I. engine and state their advantages.

Question: 

List the additives of Lubricant used in S.I. engine and state their advantages.

Answer: 

Role of following lubricant additives (one mark each) 1. Zinc ditinophosphate: - Zinc ditinophosphate serves as an anti – oxidant and anticorrosive additive.

2. Fatty acids: - This type of additives prevents rusting of ferrous engine parts during and form acidic moisture accumulation during cold engine operation.

3. Organic Acids: - This type of additives improves the detergent action of lubricating oil.

4. Ester: - To lower the pour point of lubricating oil.

5. Silicon polymers: - This additive serves as Antifoam Agent.

6. Butylene polymers: - This type of additives added in lubricating oil to increase their viscosity index.

7. Zinc ditinophosphate: - Zinc ditinophosphate serves as an anti – oxidant and anticorrosive additive.

8. Fatty acids: - This type of additives prevents rusting of ferrous engine parts during and form acidic moisture accumulation during cold engine operation.

9. Organic Acids: - This type of additives improves the detergent action of lubricating oil.

10. Ester: - To lower the pour point of lubricating oil.

11. Silicon polymers: - This additive serves as Antifoam Agent.

12. Butylene polymers: - This type of additives added in lubricating oil to increase their viscosity index.