No offense to everyone else but I use 103 and 109 with dramatic difference...
The car as I expected adjusted on its own after the first launch.....
I have had no issues and a lot of fun.....
Runs smoother even after going back to 93.....
Think about it like this.....
The car recognizes when you put 89 in it and the computer adjusts.....
Why would it not adjust for higher octane.....
Just make sure it is unleaded gasoline......
My car started running better after using the higher octane...
A lot of it has to do with what else you have added to the car.....
Here are a couple of links on the topic:
http://www.camaro5.com/forums/showthread.php?t=252375
Gaining Horsepower By Pulling the Fuses In A Late Model Camaro
Added Jul 11, 2011, Under:
Camaro
If you are new to owning a 2010+ Camaro SS equipped with the L99 or LS3 V8 engine, then you may not be aware of a simple trick that could unleash a few extra horsepower.
There are two specific spark timing tables housed in the memory of the vehicle’s Electronic Control Module (ECM). One is
used for cars running high octane fuel and the other for when the vehicle is using low octane fuels. Whenever you drive the vehicle, the ECM is constantly making decisions based on the data it receives from all of the sensors in the engine and exhaust. Over time, the ECM will set your Long Term Fuel Trim (LTFT) to the low octane tables.
http://thehorsepowerjunkies.com/vehi...-model-camaro/
Sunoco:
http://www.sunocoracingfuels.com/en/