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E12, E28, E34, E39, E60General discussion and technical help for all year 5 series cars.
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Your Ride: 2002 525i touring M sport
fuel/oil
I just purchased a '92 525i touring.Can this engine use 87 octane rather than premium.What might be the downside? Is going to a synthetic oil a good idea or the age of car there is no benefit?
11-14-2007, 09:52 AM
