With an area of 151,563 square kilometres (58,519 sq mi), it is the nation's third-largest state. It comprises 38 municipalities (municipios). In 2010, Coahuila's population is 2,748,391 inhabitants. The five largest cities in Coahuila are the state capital city of Saltillo; the second largest is TorreÃ³n, third largest is Monclova (a former state capital), fourth largest is Ciudad AcuÃ±a, and fifth largest is Piedras Negras
From what I have read it varies with the quality of the paint and the storage conditions,but 3-5 years is reasonable for unopened cans. Most of the evidence seems anecdotal. There always seems to be a case of someone using something 20 years old that they got for free and it lasted 30 years.
Paint can last for a decade or longer with proper storage. Look at the can and the paint to determine when it's time for disposal. Oil and latex paints require different disposal methods when the time comes, regardless of sheen or whether they're interior or exterior grade.