Corrected entry: Towards the end before Alice goes in the Umbrella Corp, and the convoy that is left goes into the helicopter they are going to try and go to Alaska. There is no way the a helicopter that is in Las Vegas could make to Alaska in a helicopter, even with a full tank of fuel they could even come close to making it there. If the convoy couldn't find regular gas where do they think they will find helicopter fuel?
Movieman123
30th Sep 2007
Correction: The convoy couldn't find gas in the small desert towns they tried; the helicopter gives them a wider range and allows them to find previously inaccessible places. As for the type of fuel, even if this helicopter doesn't use regular gas, there are plenty of airfields between Las Vegas and Alaska where they could potentially fuel up.
Xofer