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Pontiac of the Month

gscherer78ta's 1978 Trans Am

2019 February
of the Month

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Ringo64

What octane do you use in your Pontiac?

Octane  

5 members have voted

  1. 1. What octane gas do you use?



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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.


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93 no ethanol in my 2000 Formula


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Used 89 in my GAGT.

87 in the Accord.

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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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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


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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.


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