Engine Oil EXPLAINED

This is why using good engine oil matters. Both boxes here contain different types of oil. When the motor runs, high-quality oil spreads evenly through the gears, properly lubricating them and reducing wear. But low-quality oil, because of its thicker viscosity, stays near the bottom and fails to reach all the moving parts.

[hristiyanpeev]

Thicker viscosity doesnt mean low quality!

[OliverHelgeHelmutL]

It’s not lower quality, just used for other things

[DelinaSilence]

Simply misinformation
The video clip itself demonstrates oil VISCOSITY which is NOT the same as oil quality. Different engines have different requirements for the type of oil viscosity

It is important to follow manufacturer recommendations for oil viscosity and changing them at regular intervals so the oil can continue to protect the engine from wearing out prematurely as old oil does not lubricate as good as new (and may build up sludge if neglected)

[nickcook]

That’s not how automotive oiling systems work.
There is a pickup and a pump, the pickup picks the oil up and the pump pumps it where it needs to go.

Deliberate misinformation does not make a good video.