Best oil to mitigate IMS failure?

[Brucelee]

Red Line still seems the best to me.

[paulv]

Originally Posted by Brucelee

Red Line still seems the best to me.

Me too! I've used Motul 8100 5W-40 after the factory fill, and then M1 5W-40. Got good UOAs but a lot of valvetrain noise on startup. Redline 5W-40 stopped all of that.

Regards,
paul...

[Flavor 987S]

Originally Posted by Brucelee

Red Line still seems the best to me.

Richard, when was the last time you owned a Boxster (986) or any Porsche? Back in 2004/2005? When was the last time you did, or had, an oil change?

[Flavor 987S]

I used Red Line 5W40 for a few years with great success. Most recently I used Mobil 1's 5W50. Oil is hard to find. I am very happy with the results. I plan to run for another 1-2 years/oil changes. I expect my next UOA to be slightly better, yet again. If I decide to change oils again, I may use Motul. Right now I can say the Mobil 5W50 is even better than the Red Line (an excellent oil) I ran.

The only way to know "what oil is best" is to do UOA's.....in my opinion.

Lastly, Jake knows the answer to this question, but he will not awswer it (or has never in the past).