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I'm pretty sure the Pennzoil Ultra is on the Porsche approved list.
Bmod986, don't forget, Mobil has a 5W50. Very good oil. Porsche approved.
I am currently testing out the Joe Gibbs DT40 5W40. Jake Raby and Charles N. (L&N Eng.) approved. I'll have my first UOA done in the early Spring. Car is currently in hibernation until April/May.
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