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RichardE RichardE is offline
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Join Date: Dec 2008
Location: New Zealand
Posts: 76
Check with your Porsche mechanic. I have been told never to mix synthetic with standard oils. If I was you i would do a change and put Mobil one in and then you know eactly what is in there.
89' 930 LE stock standard
90' 944 S2 also original
75' 914 2.0
Old 09-27-2009, 10:21 AM
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