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Old 12-02-2016, 03:43 AM   #32
Flavor 987S
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Join Date: Jul 2009
Location: Arlington Heights, IL
Posts: 1,561
Here is a recent VOA for the DT40. As you can see, it is NOT a high ZDDP oil. About the same as Mobil 0W40. I've tried DT40 in two different Porsches, my 2006 987S and my 2014 991S. The results via multiple UOAs were just fine....but no better than Mobil 0W40. And worse than Red Line 5W40 in the case for my Boxster.

Since I was looking for a better result (than M1 0W40) I switched to the Mobil 5W50 that is Porsche A40 approved. I've had the best results so far with this oil, and have been using it for over 6 years now (and about 80,000 combined miles). Very easy to find now at Napa Auto Parts (on sale recently for about $6/quart).

Mobil 0W40 is a good oil. DT40 is slightly better. Mobil 5W50 is slightly better, again.
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File Type: pdf DT-40 Virgin.pdf (56.8 KB, 219 views)
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