Not a bus - but one heck of a diesel... .and people can ride - so it qualifies

[Tikvah]

https://www.youtube.com/watch?v=WvMl8LUzQnk

Can a Detroit Diesel do this?

[Oonrahnjay]

    At the beginning, I was thinking "runaway" but then the pure flames.  If some cylinders destruct and just pass fuel straight through, can the engine continue to runaway on "good cylinders" and cause a fire in the exhaust from that unburned fuel???

[luvrbus]

That one is running from oil looks like it lost a turbo