Will Mixing 10 Motor Oils Damage an Engine? Let's find out!

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I mixed 10 different motor oils, conventional, synthetic, various viscosities, racing oil, oil with an ester base, oil designed for a diesel engine, then used the oil in a vehicle for nearly 4,500 miles. Oil tested by me and an independent oil testing lab to assess quality of oil and "wear metals" in the engine compared to using just 1 brand. Thanks to everyone who requested this video!

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