Question

match the benefit of full - synthetic oil with engine conditions: if oil is thicker, engines lose power and efficiency. synthetic has greater resistance to oil thickening to maintain engine efficiency. synthetic provides maximum protection in extreme hot and cold temperature conditions. synthetic improves engine protection by resisting oil breakdown. 4 of 16

Explanation:

The key is to match with the problem of oil - thickening reducing engine power and efficiency. Synthetic oil's resistance to thickening helps maintain engine efficiency, which directly addresses the given condition. The other two options are about protection in extreme temperatures and resistance to oil breakdown, not directly related to oil - thickening and power/efficiency loss.

Answer:

Synthetic has greater resistance to oil thickening to maintain engine efficiency