Thick Oil In Engine

Thick Oil In Engine. Reason to Move to a Thicker oil??? BobIsTheOilGuy The oil won't form a consistent lubricating film, allowing metal-to-metal contact and wear. Overfilling the engine with thicker oil can cause oil foaming, which can lead to oil starvation and engine failure.

However, thicker oil, such as 5W30, provides better protection at higher temperatures by maintaining a stronger film over engine parts, crucial in hotter climates or under heavy engine loads. As an example, a 15W-40 oil has a viscosity grade of 15 at 0°F and a viscosity grade of 40 at operating temperature (212 °F)

Does Engine Oil Get Thicker When Hot? (Here's The Truth) » AutomotiveRider

5W-30 oil is unsuitable for extremely high temperature use since, at these temperatures, car engines require a thicker oil with proper bearing support and cushioning. Use 15W-50 only if your engine is designed for thicker oil or operates in extreme conditions Higher numbers mean thicker oil consistency at engine operating temperatures

Thick Engine Oil. The cons of using a higher viscosity oil in your older engine • Poorer circulation— A higher viscosity oil has more internal friction, resulting in slower flow 10W-30, 20W-50: Oils with two numbers are "multi-viscosity" and provide viscosity coverage across varying temperature ranges

What Happens if I Use A Thicker Oil in My Engine? AMSOIL Blog. Thicker oil provides better lubrication at high temperatures, minimizing the risk of breakdown under extreme conditions A thicker oil, because it doesn't flow as well, can't remove heat as well as the recommended weight oil.