if i get a 93 tune, can i still use 87 octane? i know that i wont get top of the line performance, but will it knock or anything like that?

 

nope, wouldnt be wise to run 87.

 

I would not. You will get some KR.

 

Just get a duel octane tune

 

It would knock and rattle pretty bad. I would strogly advise not to.

 

uhhhhh

Tuned for 93!

 

You could get away with it if you kept your rpm's below 2,500 at all times with 87 oct gas in the tank with a 93 oct tune.

Jim

 

He tuned my truck a LOOOOOOOONNNNNNNGGGGGG time ago when he first got the LS1 edit that alows you to do unlimited cars. He was sitting in the truck with me when he did it. (acutally kinda cool to see that hes so popular now) Im not exactly sure what he did, lol, but I run 87 all the time. Gas is to rediculous for me (a college student) to be running around on premium gay(<- LOL I meant to type gas but when i went back and read this it said gay. But gas right now is very gay so im going to leave it.). But yeah, i run 87 and my truck runs great....

 

how can you get a dual octane tune, or whatever its called? Does it cost more? Thanks for the input

 

O, by the way, where is the PCM located on a 2000 truck?