Osso is a petrol station in Miami
Osso Station
located near the Orange Bowl Stadium. The name and logo is a parody the real-life station, Esso, but the service station has design cues of an Arco station. The station serves no purpose whatsoever (like many other businesses in the game). "Oso" (without a S) means "Bear" in Spanish and "Osso" (with the two S) means "bone" in Portuguese.