Is Thinner Engine Oil Better?

Engine oil viscosity

Thin oils reduce friction in engines and help engines start quickly during cold weather. Thick oils are better at maintaining film strength and oil pressure at high temperatures and loads.

Will thinner oils damage engine?

Just like using an oil with too high a viscosity may lead to problems in Brad's engine, using a thinner oil can have the same result. Oil that's too thin can fail to develop a consistent lubricating film, inviting metal-to-metal contact that causes wear. Extreme stress and heat add to the challenge.

What happens if engine oil is too thin?

If the engine oil's too thin, symptoms you may experience include: Engine ticking. The smell of burning oil, especially in hot weather. Low oil pressure.