galón

In Spanish-speaking America, ? – 20^th century, various units of liquid capacity, frequently equal to 5 botella. Stampa says it was in use for alcohol throughout New Spain, at 3½ to 5 liters.

Manuel Carrera Stampa.
The evolution of weights and measures in New Spain.
The Hispanic American Historical Review, vol. 29, no. 1, pages 2 - 24 (February 1949).

Page 15.

Argentina: 3.80 liters (about 1.01 U.S. gallon)
Bolivia: Nationally, about 3.36 liters.

Technical Factors..., 1972, page 103.

In the town of Loreto in the department of Beni, = 4 liters, for alcohol.

In the town of Villa Bella in the department of Beni, = 5 liters.

[Bolivia] Ministerio de Agricultura, Ganaderia y Colonizacion. Dirección General de Economia Rural.
Resumen General de Medidas típicas de la República de Bolivia.
Corrected and revised by the Departamento de Muestreos y Padrones.
[La Paz]: Departamento de Muestreos y Padrones, 1956.

Page 45. (Page numbering is not continuous.)

Chile: 4.54 liters (approximately 3.995 imperial quarts) (UN 1966)
Cuba: approximately 3.7854 liters, that is, the same as the English wine gallon and the U.S. gallon. (UN 1966)
Dominican Republic: approximately 3.2401 liters. (UN 1966)
El Salvador and Colombia, 20^th century: = 5 botella = 3.75 liters, a value that comes from government action increasing the botella to the international standard of 750 milliliters. (UN 1966)
Honduras, 20^th century: approximately 3.456 liters = 5 botella. (UN 1966)
Peru: approximately 1 imperial gallon ( approximately 4.546 liter)
Venezuela: 3.5 liters (about 0.925 U.S. gallon)