My 07 Canadian vehicle manual states that alcohol blends are not adequate for use in this vehicle and not to be used. Looking on the forum I see that most US posters report that US stations are supplying some kind of 10% or more alcohol blend fuel gasoline. Have my trips through the US to another country been curtailed, or do I have to start thinking about carrying my own fuel when traveling to Mexico?
It's no more than 10% Unless it's labeled as E-XX (typically E85), and that will be a rare find.
What's the make/model? I'd call the dealership (don't give any names or personal information), and ask them if traveling to the US/Mexico, where ethanol blends may not be labeled is safe for your fuel system.... Be sure to ask about warranty
Time is the best teacher. Unfortunately it kills all its students.