What octane do you use in your Pontiac?

[Ringo64]

Just a curious moment to see who uses what and reasons (ie tune, etc...)

I use 87 in the G6, no tune or anything to warrant upper octane.

[Pontiacbubba]

Use 93 in my 06 GTO.

[RAREBRD]

93 no ethanol in my 2000 Formula

[[ChaosweaveR]]

Used 89 in my GAGT.

87 in the Accord.

[havoc1482]

87 in the Grand Prix and 89 in the Phoenix. Anything less in the Phoenix and it will auto ignite when I turn the car off and keep running for a few seconds.

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[Young gun]

87 per manual due to tune.

Might have it tuned to 93 when i install headers

Farther down the road defiantly 93 and maybe E-85 if I'm feeling fancy

[JUSTA6]

Sta-bil has a new ethanol treatment for older engines. In addition they have 104+ octane boost. I use 87 and 104 once a month in the GTO (as its system cleaner as well.) 93 is manditory for the Sunbird.