You can't easily siphon gas out of modern cars because they're built with one-way valves meant to let fuel easily flow in but ...

Back in 2004, several automakers got together to create a more pure form of gasoline to meet strict standards set by the U.S. Environmental Protection Agency (EPA), now known as Top Tier gasoline.

When a project car sits still for 10 years, time quietly eats away at everything that once worked. Rubber turns hard. Fuel turns to varnish. Lines that look fine on the outside start breaking down ...