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Re: Preignition pinging?
Or try an octane boost additive.
Jimmy, do you actually get better performance from Premium? If you have the 3.5 L engine, I was not aware it could take advantage of a higher octane level.
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"Some men are Baptists, others Catholics...my father was an Oldsmobile man" seriously, my dad sold Oldsmobiles
2001 Intrigue GL
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