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The brand of fuel you are using may cause it. I had started using UNOCAL super for awhile in my Buick Regal/86 and it went away. It had started when the blend in my preferred fuel was modified for the season change. Go up a grade of fuel or change station brands for awhile. /Alex

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โˆ™ 2004-06-29 02:24:15
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Q: What would cause a 1990 Oldsmobile to make a knocking noise?
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