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"Couldn't agree with this more, and for the same reason I have followed and will follow the 20K oil change/service interval. Other 987 owners follow the break-in but not the servicing recommendations, which makes me wonder why they selectively second-guess Porsche engineers."
Well, here is a challenge. Run the oil for 20K MILES and then take a small sample and send it to Blackstone labs for analysis. I think this is a $15 charge or so.
Then report back to us. I think you will be literally amazed at what our dear Porsche engineers have been recommending.
To save you some trouble, using M1 0W-40 oil, the UOA I have seen indicate that this oil is SHOT at about 10K miles tops.
That is NOT true of Red Line oil which is likely good for 15K.
But hey, it is your engine.
Goodluck.
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Rich Belloff
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