Fuel does not stay fresh forever. Gasoline begins to oxidize in a few months, forming sticky varnish and gum that can clog carburetors, injectors, and fuel filters. Diesel faces its own problems: as ...

Aluminum fuel tanks can corrode in a marine environment, though much depends on how well they are protected belowdecks from salt water. Shielded from briny water, tanks can last forever, but on some ...