First time using the boroscope.
I received my amazon boroscope yesterday but was kind of occupied. This afternoon being so nice I made it priority to get some pictures and videos of my findings. Although I do not have any issues, the carbon is real at 66K. Oil was even found on the air temperature sensor which is away from the 4 runners. Even the tip of the scope managed to scrape and dislodge some carbon on to its lens. For sure the CRC stuff soften the carbon.