putting 85 octane in a l67 for 100K - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 12-08-2005, 01:14 AM   #11
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Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by BillBoost37
The 95 manual says you can... but 85 octane? Where do you get a rating that low? Lowest around here is 87.
Wouldn't higher altitude have lower octane ratings for cleaner air?

I know in Colorado we had 85, 87 and I think 91<---- Highest we had...

Where is Duffer... He should know... Maybe they changed it on me...lol
you are corect 85 87 and the best at the pump is 91 can u guess what i use
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Old 12-08-2005, 01:45 AM   #12
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Their is gas station about 7 miles from house that sells 105 octane , put in my corsica for before it went to thr crusher. The corsica had wicked rust problems on the frame it was only 94. IT was fun.
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