 Grease trucks on the College Avenue campus of Rutgers University are known for serving a sandwhich with no standardized what?
Submarine sandwich: A submarine, also known as a sub, hoagie, hero, grinder, wedge, spukie, or Italian sandwich, is a type of sandwich that consists of a length of bread or roll split lengthwise and filled with a variety of meats, cheeses, vegetables, and condiments. Submarine sandwich:  The sandwich has no standardized name, with over a dozen regional variations used across the U.S. Larger submarine sandwiches, particularly those that are longer in length or overstuffed with greater quantities of ingredients than usual, are sometimes called battleship sandwiches or destroyer sandwiches.
i don't know