im gunna go to mexico for 2 weeks, and taking the truck. i have 41,000 miles . i am goin to change the following:
engine oil change
tranny fluid change + super cooler
differentail fluid change
fuel filter
cabin filter
anything else u think i should change??? oh and what tranny and diff fluid should i get??? brand and type? how do u change out the diff fluid??? i have 3.73 gears and open diff. thanx in advance

 

oh and should i take off the hpp3 tunning??? im iffy about the gas they have over there dont wanna start pinging over there

 

I'd use GM fluids in the trans and diff, and if you aren't already using Mobil 1 engine oil, use that.
The gasoline is the same as here I think, you shouldn't have any problems. I've gone there plenty of times and used the gas.
But I didn't have any performance mods done to the vehicles driven over there...completely stock. Just use the higest octane they have I guess.

Where abouts in Mexico?

 

im goin to zacatecas, and goin to puerto vallarta for a couple days too
how much are the GM fluids?? i already use mobile 1.

 

anyone else??????????????????

 

Better be sure to lock that bad boy up!