The garage area at the Indianapolis Motor Speedway is known as "Gasoline Alley." The nickname dates back to the early decades of the race, and for a time, referred specifically to one particular spot in the back where cars would refuel. Though the exact origin of the name is unclear, it may be loosely linked to the eponymous comic strip. Later, the nickname was used for the main corridor of the garage area, and eventually was used colloquially for the entire garage complex. The use of gasoline at the Indy 500 was phased out in favor of methanol beginning in 1965 (and later ethanol in 2006), but the nickname nonetheless remained. Gasoline was not used again at Indy until NASCAR arrived for the Brickyard 400 in 1994.