Jdinark

I have read through a lot of threads with a ton of technical specs, especially for you guys who track your cars. But what is the best motor oil for a 928 that's a regular driver? Synthetic vs old school 20/50?

86.5 55k miles auto trans

Alan

Uh Oh!

hacker-pschorr

I prefer extra virgin olive oil from Door County, Wisconsin.

Captain_Slow

Something thick with zinc in it.

hacker-pschorr

On a serious note, please read through these threads, this has been covered more than all other topics combined.

These threads are from just the past 12 months, and not every oil thread. I tried to pick out the best ones:

https://rennlist.com/forums/928-foru...ufficient.html
https://rennlist.com/forums/928-foru...motor-oil.html
https://rennlist.com/forums/928-foru...and-10w60.html
https://rennlist.com/forums/928-foru...0w-40-oil.html
https://rennlist.com/forums/928-foru...-question.html
https://rennlist.com/forums/928-foru...ry-poorly.html
https://rennlist.com/forums/928-foru...m-climate.html
https://rennlist.com/forums/928-foru...motor-oil.html
https://rennlist.com/forums/928-foru...ngine-oil.html
https://rennlist.com/forums/928-foru...0w-50-oil.html
https://rennlist.com/forums/928-foru...-additive.html
https://rennlist.com/forums/928-foru...-sen-this.html
https://rennlist.com/forums/928-foru...r-climate.html

MainePorsche

Oh boy !
At least a 15-50. If in a region like the Desert Southwest, you may want a 20-50.
You'll want zinc (zddp) in it. As an example Mobil 1 15-50 syn has 1200-1400ppm. I add a just a touch more with a concentrate added to each oil on change - has made a difference.
You will get a multitude of recommendations, or none, as many are getting tired of the turmoil with this matter.
Best to read, try/test, find what works for you.

Speedtoys

Dave928S

I think I can safely say that the consensus is that there's no consensus.

V-Fib

Anything but recycled SAE 30 at 7-11

Jdinark

Wtf did I just get into. Let me just ask this. Mobil 1 yes or no ?

Chalkboss

That depends... hehe.

rnixon

I use Mobil 1 15W50 for its higher ZDDP levels. You need to be careful though - here's some info on Mobil 1 additive levels.

MainePorsche

Guys here are defensive and zealous on their choice of oil.
It's like asking a bunch of women in a close, non air conditioned room what they think is the best first name for a daughter - watch out !

Alan

Very mixed opinions on that - A lot depends on the local climate during the months you actually drive the car... we have no idea where you are: Iceland? Australian Outback?

Its all been said before - just read the history

Alan

ammonman

Simple answer is any motor oil of appropriate viscosity for your expected ambient temperature that has more that about 1000-1100 ppm of zinc and of phosphorus. There is a viscosity chart in the owners manual that will give you the necessary info.

Mike