Nora is tortured for three weeks physically (being hit and nearly drowned) and using drugs. But the white dress she is wearing through it all remains pristine.
Miles and crew take off in a fully loaded Bell UH-1 "Huey" helicopter in Atlanta headed for Colorado. They stop for fuel at some airbase and siphon 15 year old fuel stored in vehicles exposed to weather and eventually take flight again. Fuel under these conditions deteriorates over time. The fuel would have been unusable, as would their original fuel they used to get there.