it's would be a no brainer decision then to me to bring either plain 91/93 or some 100 leaded.

maybe that's just me since i'm known to haul 60 gallons of fuel in my evo to the track in the past.

if you brought 5-15 gallons you could spike your tank to compensate for what you get in mexico.

 

The Pemex gas isn't too good....

 

I just decide to go ahead and take my Evo to Mexico I found a pic of this Italian ride using a Pemex pump I don't know you guys but for me this is one of the best proofs the gas in MX is not that bad

 

Install a good inline fuel filter and bring some Torco.

 

this. there is also restrictions on how far into mexico you can go with most company endorsements.