Quote:
Originally Posted by Squillo
WTF?
|
lol let me help...
he said this:
"...ONLY USE 91 OR 93 OCTANE FUEL. 93 if you can get it 91 if not. even though gm says you can put 87 in it they are wrong. it will kill your 6.2l The manual says you may hear a knocking sound. that knocking sound is your engine being destroyed.
run 2 tanks of 93 in it then pull fuses 5 and 20 over night.
your dealer put 87 octane in it. doing this alows the ECM to go back to the 93 octane tune so you have the most power. It will do it on its own but may take 6mo to do it..."