In the past year I've been to Nassau, Cartagena, Bogota, Montego Bay, Panama City, Lima, Chiclayo (Peru), Manta (Ecuador), & Arica (Chile).
There definitely is AvGas in the first 3 places (info current as of this month), but I'm not 100% sure about the rest.
As far as recommendations - Cartagena is a fabulous place to see (spend a few days!) and if you need a simple night stop, Manta has a wonderful FBO run by a fantastic Ecuadorian couple. (Not much to see there but way less hectic than the larger airports in that country.) Chiclayo also was a nice, quiet fuel stop. I highly recommend Arica if you need something in Northern Chile. Basically - no bad experiences in any of the above places I mentioned (except I will avoid Lima at all costs next time!!!!! Just too busy, chaotic...) however, we had pre-arranged handling in all of them. Oh - and Bogota is a great place to be a tourist too... loads of things to see!!!
Enjoy the adventure!
Last edited by surveytheworld; 16th Oct 2013 at 22:15.