Thread: 85 octane
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Old 07-01-2008, 08:12 PM
worland worland is offline
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Join Date: Sep 2003
Location: WY
Vehicle: 2007 Ford F-150
Posts: 1,104
At higher elevations, like here in WY, 85 octane is the equivalent to your 87 (it's all covered in your truck's manual). The truck probably ran better on the 85 since it's not a PRK "special" blend.
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