What Octane do you use in your GT?

[FordGTGuy]

and how does it perform on the good stuff? :biggrin

 

[jamie]

What do you consider the good stuff? 93?

 

[FordGTGuy]

What do you consider the good stuff? 93?

I think 93 is recommended but I was just wondering if anyone was using 97? or even higher.

 

[wonkawonka]

California has crap 91!
Next month at the track I'll test 100 or 104 octane, see how it goes.

 

[chas98]

Using higher octane will just slow you down. You dont want to use anything higher than what is neccesary to prevent detonation. The higher octane burns slower and will slow you down....you dont need anything more than 93.