Question about 1995 Pontiac Bonneville

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Have 90,000 miles...what weight oil do you recommend?...is synthetic okay for an older model ? when is a car considered an antique ? will the appraisal value increase at that point in time ? thank you!

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Do not use a synthetic oil, synthetics break down faster in engines of that age that have been running non-synthetic. Keep running a high milage 10w30. My opinion is Valvoline is the best.

Posted on Sep 15, 2010

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