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Here are some pictures of what a GPF looks like versus the pictures I took of the exhaust system on my 2021 C2S. Note: There is no GPF on my 2021 C2S.
. The 992 Exhaust System with GPF.
Note the four section canister which contains the 3-Way catalytic converter followed by the GPF.
Another picture of the 992 Exhaust System with GPF.
Note the four section canister which contains the 3-Way catalytic converter followed by the GPF.
This is the drivers side two section canister on my 2021 992 C2S which contains the 3-Way Catalytic Converter.
There is no GPF.
There is a 90* Mandrel bent pipe that connects the 3-Way Converter to the Muffler. This pipe is absent when a GPF occupies this space.
This is the passenger side two section canister on my 2021 992 C2S which contains the 3-Way Catalytic Converter.
There is no GPF.
There is a 90* Mandrel bent pipe that connects the 3-Way Converter to the Muffler. This pipe is absent when a GPF occupies this space.
Thank you, I'll crawl underneath and have a peak. In the meantime I also sent a mail to Dustin Aydi (I didn't see a 992 guru and he's the closest I saw) in the hopes he could shed some light onto this confusion of C4 Europe, US and RoW. I'll post if I ever hear anything back. This, btw would make an excellent topic for Panorama...
Thank you again Bluehighways! Should I not have a GPF as it seems likely now, can I run ESP (not the x3 version) on it? If not I have two 6 packs for sale...
Should I not have a GPF as it seems likely now, can I run ESP (not the x3 version) on it?
Mobil 1 FS European Car Formula Full Synthetic Motor Oil 0W-40 (Not ESP X3) is what I am presently running. As long as I am doing the oil changes, it is what I will continue to run.
Per ExxonMobil and I quote from their web site: "Mobil 1 ESP X3 0W-40 is made with a proprietary blend of leading edge components formulated to be fully compatible with the latest Gasoline Particulate filters (GPF's)."
FWIW Here is the ExxonMobil Website for ESP X3 Oil: https://www.mobil.com/en-ro/passenge...uel%20economy*.
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Last edited by Bluehighways; 04-25-2021 at 04:26 PM.
kpblade is correct. No Particulate Filter = No C40 needed. C40 grade lubricating oil is needed to prevent premature plugging of the Particulate Filter. At least for the moment, it doesn't look like we'll get Gasoline Engine Particulate Filters until 2025 at the earliest. Current U.S. Federal and California Porsche engines in all applications meet the Level III 3 mg/mile standard. The 1 mg/mile rule doesn't hit until 2025 at the earliest. It's possible that the 1 mg/mile rule will require a Particulate Filter, but we have until 2025 . . . . at the moment.
I wouldn’t be too surprised if Porsche starts equipping US bound cars with GPFs regardless. They’re doing it with the GT3 and they’re doing it with the Cayman GT4 and Boxster Spyder. Porsche doesn’t need to spend the extra money on two separate catalytic converter designs for Europe and US if they don’t have to do so.
Since no one has replied, I will dare to ask again, I can run just plain vanilla Mobil1 0w-40 as I do in all my cars correct?
I've since contacted my sales rep who was the person who said (based on his techs) that my 992 had a GPF, he now says all 2021 992 have GPFs but they're "ignored". OK moving on...
Since no one has replied, I will dare to ask again, I can run just plain vanilla Mobil1 0w-40 as I do in all my cars correct?
I've since contacted my sales rep who was the person who said (based on his techs) that my 992 had a GPF, he now says all 2021 992 have GPFs but they're "ignored". OK moving on...
siberian
Funny how complicated an oil change is getting right? I had a hell time picking out oil for wife's X5 as BMW now has 3 LF oils to choose from.
Anyway, my understanding is ALL recent Porsche, 2019+ ?, has GPF but NA has it "inactive" without sensors and you need to coat it with some chemical to make it active. I read it somewhere but can't find it.
Closest I can find is https://rennlist.com/forums/718-gts-...-euro-gpf.html
Regardless, I'd just use the ESP oil you got over the good 'ld M1 0w-40 we used to use.
So let me try and follow this and thanx skim for the post.
So all 2021s have GPF engines though inactive in the US. Thus since the ESP (or 3x) is needed for the sensors and we don't have any, we should be able to remain with the trusty old Mobil1 0w-40.
HOWEVER, could one "infer" that using Mobil1 0w-40 ESP (we haven't addressed the x3 flavor), on such vehicles will not cause any damage to our inactive GPF engines?
Furthermore one could conclude that the essential difference between vanilla Mobil1 0w-40 and ESP (or X3 flavor) is the additional additive(s) ensuring the lubrication of the sensors, but would not imperil our inactive GPF engines; correct?
So let me try and follow this and thanx skim for the post.
So all 2021s have GPF engines though inactive in the US. Thus since the ESP (or 3x) is needed for the sensors and we don't have any, we should be able to remain with the trusty old Mobil1 0w-40.
HOWEVER, could one "infer" that using Mobil1 0w-40 ESP (we haven't addressed the x3 flavor), on such vehicles will not cause any damage to our inactive GPF engines?
Furthermore one could conclude that the essential difference between vanilla Mobil1 0w-40 and ESP (or X3 flavor) is the additional additive(s) ensuring the lubrication of the sensors, but would not imperil our inactive GPF engines; correct?
siberian
Small correction, GPF is part of emissions/exhaust system, not engine.
The M1 ESP should be safe to use although it's not labeled as C40 oil because that's what Suncoast Porsche lists under maintenance. https://www.suncoastparts.com/product/0W40M1ESP.html
You can use the Motul oil which is labeled C40 for peace of mind but if above oil is what a reputable Porsche dealer carries and sells on their site, I'd trust to use it.
Sorry of course, my bad re. GPF pertaining to exhaust not engine.
I have 12 qts. of ESP I bought as I was told by the salesperson that I had a GPF exhaust equipped engine (not that it was inactive). No one really carries this oil here in Fairbanks and lining up my ducks I ordered it early to make sure when came time to my twice yearly (Spring and Autumn) oil changes I would be ready. So if possible I would like to try and use up the ESP oil and then going forward I would revert to vanilla flavored Mobil1 0w-40.
I've mailed back my salesperson asking him to confirm from PNA or wherever whether my above post is correct. I've also contacted one of the subject matter experts listed in Panorama in the hopes he could shed some light as well - might be a great article for Panorama btw.
The conclusion is I don't want to throw 100 bucks worth of perfectly good oil out if it won't do any harm (I do not track the car) but neither do I want to wreck the engine for 100 bucks.
If the GPF is 'inactive' on US cars how come the exhaust itself is physically different? And apparently they sound different to non-US cars. Makes no sense.
OK so after an extensive exchange with the salesperson and he with their Service Techs, I have been informed that Mobil1 0w-40 ESP x3 is the one recommended. The old vanilla flavored Mobil1 0w-40 is no longer used except in some older vehicles (my 2008 Touareg I would guess and my 2020 Macan). My question now is can I run ESP or does it have to be ESP x3 as in the pictures below:
Will post reply when I receive it. But part of the question has been answered irrespective of whether the GPF is active or not.
ESP x3 = meets C40 spec = Global GPFd cars. NA does not have GPF but Porsche NA says C40 oil only for all 992s. This is what you need to meet the spec. Do you care? Dunno
ESP (non x3, ie regular) = meets A40 spec = whats been used on the 991s
04-25-2021, 03:59 PM
