TOY4S

I received the same reply from Suncoast regarding Mobil 1 ESP. However, I purchased the following from Porsche South Orlando for my 992 C4S.



The product data sheets directly from Mobil do not indicate that Mobil 1 ESP Formula 0W-40 has C40 approval. The Mobil 1 ESP X3 clearly does. Mobil and Porsche North America need to clarify approvals. Given the poor availabilty of ESP X3, I will use Motul 8100 x-clean Gen2 5W-40.

hmintz

I had a long discussion with the Parts Dept and Service Manager at my dealership today. They are certain that the Mobil 1 oil they are selling for $8.55/Qt is C40 certified, and produced a quart for me to see. I showed them that the bottle does not say "C40" or X3 anywhere. They produced a document from Porsche and ExxonMobil showing part numbers for the 1 liter bottle and case oil with the C40 certification. I told them we can all agree that Porsche requires C40 oil, but there was no way to correlate that document to the quart of oil on the counter. They insisted the oil was C40 compliant. I asked them to look up the correct C40 part number (000 043 210 93). They did and said that oil is a European formula and I might have warranty issues if I used it ( ! ). I reminded them that the "European" oil was C40 and said so on the bottle, unlike their bottle. Maybe Mobil and Porsche have agreed that the USA bottles are C40 even if it is not shown on each bottle, but I have seen no documentation of such an agreement. I think by now the dealers know of the C40 requirement and think they're in compliance by using the oil they are sent by Mobil. But how do they know NOT to use that oil on older Porsches that require A40? I told my dealer I'm using Motul on my next fill unless I see C40 documented on the Mobil 1 bottle. Someone at Mobil or PCNA needs to clear this up.

Howard

Russv

Looking at the Mobil 1 site, Mobil 1 ESP X3 0W-40 has Porsche C40 approval.
https://www.mobil.com/en-de/passenge...-1-esp-x3-0w40

chono

Same link has been updated to now say:
Note: "*" There is a production split, cars made before 05/14/2018 should use a different oil. This is the official oil used by Porsche USA. This is not the "C40" version, C40 is for European market cars only.

Bill Mitchell

That is somewhat out of date and misleading, all 2021 and some 2020 models equipped with the GPF are supposed to use the C40 oil. While the GPF doesn't have the matrix coating or the monitoring sensors, it is still called for to reduce the possibility of LSPI and soot buildup on the matrix of the GPF.. Mobil 1 ESP X3 0W-40 is only available in the US at Porsche dealers currently, but Motil and Liqui Moly have a C40 oil available in the US at competitive prices.

Westcoast

Considering the Suncoast webpage has a picture that is so small you can read the wording on the bottle, not that it even matters... because they say this as well: And consulting my owners manual says this which clearly states C40:

chono

My manual (for a USDM car) also says C40.
Pretty misleading.

I thought it was odd that their wording changed for the same product .. from "don't worry it's C40 even though it doesn't say so on the package" to "don't worry, you don't need C40; it's only for the euro cars"
Extra odd that Suncoast is a dealer and doesn't have ESP X3 listed.

Westcoast

I would say that it is clear, the 4.0l engine cars require C40 spec oil... not sure why Suncoast would say otherwise when they themselves direct you to the owners manual.

chono

Yeah - I wasn't being clear. Suncoast is misleading, the manual is clear.

Charles Navarro

I'll just make this really simple. From a mechanical standpoint, the C40 oil is required if the engine is direct injected and has forced induction (supercharger, turbocharger) to protect against LSPI AND/OR the engine is fitted with a GPF (gasoline particulate filter).

What makes the C40 oil different is that it has lower levels of Calcium detergents and no sodium detergents, as these can lead to LSPI. Also, there is a requirement to meet ACEA C2/C3 specifications for lowered sulfated ash to protect the GPF.

This is why Porsche reduced the oil change intervals with these oils as well as they can't go anywhere near as long as A40 oils for drain intervals.

Westcoast

Charles, thanks for providing a clear statement of the reasons for C40...

sobiloff

So I'll be sticking with the M1 C40 oil until I can get rid of the GPF, at which time I'll switch back to my usual Renewable Lubricants Bio-SynXtra HD (even though the RLI is already low ash and calcium, and it's bio chemistry provides excellent solvency).

Spyderman2

I just bought this on Amazon.com. Says right on the bottle that it meets Porsche C40 spec. $50 for 5 Liters. No tax. Free Shipping. Done.

Motul 8100 X-Clean Gen2 5W40 (5 Liter)

Bill Mitchell

Exactly, and this should end the debate(but it won't).

neurotic

thank you. So if we remove the GPF, we can run non C40 oil?