Did Trump say “Hormuz” at St. Clair County, Michigan?

Yes. Said at 4:31:32 PM ET, flagged live 0.32 seconds after the word.

“We're taking more oil out of the Hormuz straight now than we did before and I tell this story all the time”

From Saidwire’s live log of Trump rally · St. Clair County, Michigan. All 13 words said at this event.