I'm sorry, but don't have a total at this time since we are still on the trip for another month or so. Also, we did lots and lots of double backing into countries since we were dealing with dogs being kenneled and meeting friends for other trips during our visit to Guatemala, Belize and Honduras. I don't think my total would be a good representation of this trip for fuel cost. I would be willing to bet that I've used almost double what it could be done in!
If you don't mind me asking, what was your total price for fuel on this trip? By the way Im so jealous you got to do this. When I'm done with my Mechanical Engineering degree from Auburn, this is the kind of trip I want to take. Great trip report!