Heres the game plan: Since your the only survivor buy stuff from yourself(obviously) then get upgrades with more money(so you keep life interesing;]) then when you run out of gas ( instead of running 200 more yards) just push your deisel back and start again. O and when you finally decide to leave dont kill any of the zombies on your helicopter. (they just want to be like you:])
-nomnom!
 "Earn to Die"){kind=icon}
 "The Company of Myself"){kind=icon}