Can you use Gear Oil in an Engine? Let's Find out!

Most people believe that Gear Oil is much thicker than Engine Oil, and putting it in an engine would destroy the motor. So I put that theory to the test. I check oil pressure with 20W-50 Engine Oil and 75W-85 Gear Oil in the engine. Then I perform some Project Farm/Engineering Explained Lab Experiments to reinforce the Oil Pressure Experiments.

The Results Might Surprise You!

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00:00 Introduction
01:11 Why Does Gear Oil Stink?
01:33 Oil Pressure: 20W-50
03:27 Oil Pressure: 75W-85
06:44 Lab Experiments
11:05 Explanation of Results