Pentastar 3.6 Overheating | Cylinder Inspection

2015 Dodge Charger 3.6L with 150000 miles would start overheating on the highway. Inspecting the inside of cylinder walls using the new Depstech endoscope camera. Forgot to mention, this is not a sponsored video, I purchased this item at full price.
Dual lens borescope 5.5 mm thick for tight spaces - amzn.to/42JSD38
Triple lens borescope 7.9 mm thick - amzn.to/3NcaPwG
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