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Originally Posted by Paul
I changed my 0w-40 Mobil 1 and factory filter yesterday at 17.5 months and 11,232 since the last change.
I'm sending in a sample for analysis including a TBN study.
I will post the results when available.
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The results are in. As I've said before driving a Porsche harder than most doesn't seem to hurt it. I've been flooring and shifting near redline every Porsche I've owned since 1974 without an engine failure. I take my cars on 5000 mile 3 week vacations.
So much for Porsche not knowing anything, the recommendation below is to change my oil even later!
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1998 Boxster with 7.8 DME, 2005 3.6 liter/325 hp, Variocam Plus, 996 Instrument panel
2001 Boxster original owner. I installed used motor at 89k.
1987 924S. 2002 996TT. PST-2
Owned and repaired Porsches since 1974. Porsche: It's not driving, it's therapy.
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