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Old 08-25-2017, 09:40 AM   #1
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91 Ethanol free gas in Lakewood, Colorado, not sure how effectively 93 would burn at high altitude or if it would improve HP at high altitude 5280+ in elevation
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Old 08-25-2017, 06:09 PM   #2
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Chevron 91 and or Shell. The car seems to adjust to the lower rating without issue. It would be nice to try 93, for a couple of tanks, to see the difference.
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