Many Greco locations in rural areas are known as "Greco Express" outlets, typically associated with a motel, convenience store, or other existing retail location. In some locations, the Greco franchise co-exists with a Captain Submarine franchise, another of Grinner's properties.
Since 1995, Greco has marketed itself using the telephone number 310-30-30 with an associated jingle. From 1995 to the early 2000s, this number was pronounced in an official jingle as "three one oh, three oh, three oh". In the early 2000s, this was changed to say "three ten, thirty thirty".