Rotella T6 for my 986

[JayG]

Originally Posted by Gelbster

Here is a link to what A40 means:
https://www.porscheclubgb.com/PCGB/media/R31%20assets/Docs/Porsche_Approved_Oils-May-2012-A40.pdf?ext=.pdf
updated here, doc is garbled but the Posts cover the gist of it:
New (2015) list of Porsche approved (a40) oils - and a strange change ... - Rennlist Discussion Forums
The list does not include some oils that exceed the A40 spec for the M96 specifically.
The benchmark for comparison of M96 oil is JGDT40 according to the M96 experts.
Obviously the engine will not explode as soon as you fill it with something else but unless someone is both a tribologist and an M96 expert,how can they credibly contradict the experts and mislead(perhaps) other Forum members ?
I am neither a tribologist nor an M96 expert,I just pass on a digest of many prior discussions of this subject.

Actually IIRC, you are referring to one M96 expert who was involved in the development of DT40.

There are plenty of other experts that don't drink that kool-aid.

Is DT40 a good oil, I would think so, as are several others

[Gelbster]

"There are plenty of other experts that don't drink that kool-aid."
Where are these alternative experts and any posts on oil development for the M96 ?
We need as many as possible, I agree.

[JayG]

Originally Posted by Gelbster

"There are plenty of other experts that don't drink that kool-aid."
Where are these alternative experts and any posts on oil development for the M96 ?
We need as many as possible, I agree.

Not every expert on oil or anything else for that matter is active or posts on this or other forums. Many of the top ones don't get involved in forums at all, they are too busty with their customers fixing their cars and/or building and maintaining race cars for them

Just because one is the most vocal does not make what they say the most accurate.
At the end of the day, it is an opinion and well all know what opinions are.

Try talking to those that actually work on our cars. There are many highly respected techs and engine builders in S. Ca. In San Diego alone I know of at least 3 .

Besides, there are tons of oil threads here and elsewhere that get in to the details.

Here is an interesting one:
https://540ratblog.wordpress.com/2013/06/20/motor-oil-wear-test-ranking/