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Gas Octane for my 2008 3.0si Gas Octane for my 2008 3.0si
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Old 10-11-2011, 03:18 PM
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koolkat1973 is on a distinguished road
Gas Octane for my 2008 3.0si
Hi -

I know our X5 requires a minimum of 91 Octane but when I filled my tank with 91 Octane as oppose to 93 Octane, I noticed a knocking/pinging sound from the engine. I don't know if that was a coincidence or if it's something else. Has anyone here have this problem? Thanks.

Kiet
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