[Maxion$Mulla$]

I bought a xcal2 with the custom tune and i have it programed for 91 octane but there is no gas stations around here with 91... only 93. can i change this to 93 without Blue Oval doing it for me. thx

 

[The Great Obucina]

dont worry about it. just run 93.

 

[Maxion$Mulla$]

ok thx

 

[Lonnie]

You can more than likely add some time to it now with the higher octane.

 

[Maxion$Mulla$]

Very cool,i found a gas station the has 91 but i didnt really notice a difference in power going from 87 to 91 except that it last longer.

 

[Lonnie]

Very cool,i found a gas station the has 91 but i didnt really notice a difference in power going from 87 to 91 except that it last longer.

I'm not understanding what you are saying. You put 87 octane in with running a 91 octane program and felt no difference? Or running the stock program with 87 and then installing the 91 octane program you noticed no difference?

Running 87 with a 91 program you more than likely had some serious detonation. Then I find it hard to believe you could tell no difference between the programming. If this is true than you're the first.

 

[Maxion$Mulla$]

when i programed the car there was still 87 in the tank then when i added 91 i felt no difference