Richard Petty's 1981 STP vs 2020 STP? Let's find out!

Is Richard Petty's 1981 STP Better than the new formula of STP sold now? A big "thank you" to Matt from the LsxMatt YouTube channel for sending the vintage STP to me. STP tested for cold oil flow, thermal breakdown and lubricity. Also, STP was tested by an independent oil testing lab for viscosity, anti-wear additive content, detergent/dispersant levels, and total base number. Finally, a blend of the vintage and new STP was used in a small engine that smokes badly and has a bad knock. Thanks and best regards, Todd

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➡ Products Tested In This Video (in no particular order):
STP Oil Treatment: https://amzn.to/3hiLSyc

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Sony DSC-RX10 III Cyber-shot Digital Still Camera: https://amzn.to/2YdXvPw
Canon 70D Camera: https://amzn.to/31b5Gy0
Azden Microphone: https://amzn.to/34d3DLE
Go Pro Bundle: https://amzn.to/31aince

This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Project Farm LLC