having gone round and round on the 996tt forum about which oil ot use, from mobil 1 to diesel to purple to... what is the weight and type of choice in the S? again, thanks going forward,

 

Here's a list from 2006. I'm sure there is a newer one out there.

 

If you can get it you won't go wrong w/ Mobil I 0/40 Synthetic. It's on the Porsche approved list.

 

Go with a Porsche approved oil in 5 W 40 weight. LN Engineering strongly suggests the heavier weight oil to protect the IMS bearing. They also suggest more frequent changes. Worth it to go to their site and do some reading.

http://www.lnengineering.com/oil.html

 

Stay with Porsche Approved...


Mobil 1 0W40 or 5W50 if you track the car and aren't starting it in extreme cold temps... I run Mobil 1 5W50

 

i use my car all year around and start in cold temp as well. what is the best oil you guys recommend to me? and how many quarts/litres to buy?

 

"Best" will be an opinion - use what's recommended Mobil 1 0W-40. Manual tells you how many quarts to buy - 9 should do it.

 

thanks jhbrennan. one more q.
LN engineering recommending 5w40. Can you guide me what are the advantages of 5w40 over 0w40?

 

The 5W40 oil may be better for the M97 engine, but may not be ideal of the 9A1 engine.

The M97 engine may benefit from a 5W re the IMS, but one also needs to consider the very thin Variocam channels. Since the 9A1 engine has no IMS issues, I think a 0W engine may be preferable.

In any case, if one is interested in 5W40, choose well... the more easily available M1 5W40 ESP is not an API SL engine and has 20% less P and Zn. See Mobil oils chart HERE.

 

thanks, please help me to pick the below 5w40 oil. Mobil 1 says it is for diesel engines. which one you guys recommend.

Mobil 1
http://shop.advanceautoparts.com/web...T|GRP2046_____

Castrol
http://shop.advanceautoparts.com/web...T|GRP2046_____

 

I would not use the M1 turbo diesel oil. The Castrol Edge Syntec is a great oil and it is in Porsche's approved oil list.

 

So why is it you want to use 5W-40?

 

He owns a M97 engine and wants a slightly thicker oil at low temps re the IMS issue.

 

He doesn't have IMS issues, the M97 may have "potential" IMS issues - I'm sounding like a troll, sorry.

 

He wants to prevent IMS problems.