Diesel is a black Diesel.


  1. Season 3 - Domeless Engines (cameo) and Thomas and the Evil Diesel
  1. Season 4 - Pop Goes the Diesel, A Blast from the Past, Light Work (cameo), Dirty Work, and Diesel's Big Idea
  1. Season 7 - A Close Shave (does not speak)
  1. Season 9 - Limits, Tolerance, Old Tricks, and Little Engines


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