> It is obvious in the video as the engine exhaust became bright green at the end, a sign that the engine was restarting by TEB. The Raptor doesn't use TEB. It

> It is obvious in the video as the engine exhaust became bright green at the end, a sign that the engine was restarting by TEB. The Raptor doesn't use TEB. It uses spark ignition. The green is most likely 'engine rich' exhaust. Meaning the cooper cladding of the engine bell started to burn away.