Thomas & Friends (1984)

Season 10: Episode 9

One more, just one more time is all Gordon needs to break his Express record. When he is given Henry’s special coal by mistake, he speaks not a word of it, thinking it will make him reach greater speeds. But when Henry’s firebox becomes blocked, due having to survive on regular coal, Gordon feels bad. He goes back to Henry, and swaps tenders with him, so Henry can puff along again with no trouble, even it means having to miss out on setting the Express record.