This truck was taken off the road in 1940, one year before the United States joined World War 2. That's 80 years ago, but the folks at "Jennings Motor Sports" decided to give it a second chance.

amazingly enough, the old 310-cubic-inch (5.1-liter) inline-six engine turns freely and it's in relatively good shape for a 92-year-old mill. And the new owner is determined to get it running again. The old six-cylinder gets its first oil change in more than 80 years, new spark plugs, and, after a bit of maintenance, it actually fires up.

 

https://www.autoevolution.com/news/gmc-truck-abandoned-for-81-years-gets-second-chance-engine-refuses-to-die-169119.html#