anyone know a shop in Guadalajara that works on Chev Dmax

It maybe the turbo, right now I just intend to watch it closely and try to get it back across the border. I have added that hotshots oil treatment which is supposed to maybe fix turbo issues, plus injector cleaner. Can't do much else except stick with a caravan group so I have some sort of help if I dont make it. Fuel economy seesm OK. Hard to tell if I am losing power as I am now paranoid, and oil looks clean and no overheating.