That 100 octane is a little far away (different side of town), but worth it for peace of mind. I'll probably just stick with 91 for daily driving and then raise the octane with some mixing of 100 octane for the track or harder driving. Thanks for the responses, guys.


It's not going to cause any issues using the 93 tune if I drive lightly on 91 octane, right? It's going to get a little expensive fairly quick if I'm constantly running across town and getting a couple gallons of 100 to add to the 91. Maybe I should just get a big 'ole drum of it.



Any experience with Torco or other real octane boosters? Not the "104" junk at Pep Boys.