Charles Navarro

I would use a full SAPS oil, like Driven, or a race oil if the car is tracked, which in that case, they won't warranty anything.

If the car is under warranty and an A40 is a must, I'd Motul 8100 X-Cess 5w40 has always worked well. Liqui-Moly is another option for an A40 approved oil. Both Motul and Liqui-Moly offer full SAPS A40 approved oils.

The tricky situation here is that if you have one of the cars with the extended warranty, will using a non-A40 approved oil that has a stronger anti-wear package void the warranty? I can't say for sure, but if I owned one of these cars, I wouldn't care about the warranty and I'd rather use a lubricant that will provide superior protection. But then again, I've bought brand new Porsche cars in the past to take them apart to do development work, voiding the warranty, so I'm an outlier.

Anecdotally, two years ago when I was at Tech Tactics East, after my presentation, a group of owners with models afflicted with this finger/follower and cam wear approached me. One was on his third engine, but another owner stated that he was aware of one car that had no issues on the original engine (as verified by used oil analysis), but the first thing that was done was to dump the Mobil 1 in favor for better oil. If memory serves me, that car was in Canada and was running Liqui-Moly. I do talk to lots of people at these events, so I may be a little off on the details.

robmypro

I think they built more .1 RS than regular .1 GT3, yet this problem seems to be a very rare occurrence for the RS. It wasn’t really that widespread with the GT3 either, but we heard about almost every incident here. In any case if you are one of the unlucky ones i am sure Porsche will take care of you, even if out of warranty, because they told us the .1 RS was not impacted. If a FF wear issue is the culprit they pretty much own it. Just reference the COG meeting and you should be golden.

“What about the 991.1 GT3 RS and 911 R? While these engines share a similar architecture with the GT3, according to Dr. Walliser these models are not affected. He explained that there are many differences between the GT3 and R/RS engines. This seems to be consistent with our observations, as there are no known reports of issues with these models.”

Airbag997

Rob, assuming this RS has original motor, then it would be a Rev 1 G series motor, correct? Which we have failure data on. We still do not evidence of a Revision 2 G series failure, correct?

robmypro

We never focused on the RS engine because there were no failures due to FF wear that we knew of at the time we approached PAG. But anyone who got a new 3.8 engine shortly after our COG meeting should have the new engine. Over the past 1.5+ years the number of 3.8 engine failures have dropped significantly which leads me to think they sorted it out. The test data they shared with us also supports it.

FogCitySF

What are the VIN# cutoffs for the Rev 1 and Rev 2 series engines?

991carreradriver

Sounds like Rob is being pulled out retirement LOL!

robmypro

Sorry buddy, totally retired! lol

s4corrado996tt

Jospay1 ! May I ask is your problem caused by 0-40W thin oil or any other causes? Thank you!

jospay1

Porsche says it's not due to the oil...
A construction/material problem... and meanwhile they had also to change the cylinder head (4/5/6 - right bank).

Turbohead

subscribed

sprite2005

Got word from the dealer today, getting a new engine for excessive oil consumption. No word on what the actual failure is but seems to be a semi-common problem from this thread. Dealer had already rebuilt top-end and it did not fix the issue. Hopefully the new engine will be a good one.

Mika911

What is excessive? Mine has always used a lot and so do others, so keen to know where they draw the line and decide to swap the engine.

sprite2005

I was going from max->min per 300 miles/tank of fuel.

garudatwo

Lol my RS makes its own oil, it goes from max to above max about 200 miles after an oil change.

Apex Ace

My 991.1 RS did the same