- “Yoohoo! Yoohoo! A steamer's escaping! Yoohoo!”
- ― The Passing Diesel
The Passing Diesel is a Diesel who shouted a warning that Oliver was escaping. When Douglas was helping Oliver, Isabel and Toad escape from scrap, he witnessed the event. Douglas told the stowaways to take no notice of the diesel. The Passing Diesel was not seen in any illustrations.
Appearences
Railway Series
- Enterprising Engines (not seen)
Template:Other Railways