Why is boilling point important in motor oil?

The boiling point of motor oil is crucial because it determines the oil's ability to withstand high temperatures without evaporating or breaking down. A higher boiling point allows the oil to maintain its viscosity and protective properties under extreme engine conditions, reducing the risk of engine wear and failure. Additionally, oil with an appropriate boiling point helps prevent the formation of harmful deposits and sludge, ensuring optimal engine performance and longevity.