Do i need to run 89 octane fuel to run level 2 on my edge evolution? Or will 87 be okay to use? Thanks

 

run mine on 87 with no problems(knocking on wood), if you run level 3 though it will spark knock like heck!

 

The manual states that level 2 is safe to run 87 and 89. Level 3 is strictly 93 and higher.

 

I never run any more than 87 in my truck and its on level 2

 

91 and higher actually.

 

87 is good for level 2.

 

yes, 91. thats what I meant. Just a little bit out of it

 

It's all good. We all have those days.

 

What about running 93 on level 3? I've heard that it will advance the timing too much. We only have 87, 89, and 93 around here, no 91.

 

You can run it on lvl 3 with 93 oct fuel no problems. If you wish you can bump your timing up .50 for each oct level. But as is it will run 93 oct no problem.

I run lvl 2 with a timing of 2.00 because I run 93 octane. I could push higher by 1.00 or so but I like it where it's at.

PS: you should make timing changes in .25 increments if you are unsure about it. If it knocks once bump it down ASAP.