NHTSA ID Number: 10246390
Manufacturer Communication Number: No. 38-23
TSB/Document Date: 2023-12-07
Summary
Instructions on manufactures certificate for approved Porsche
C40 engine oils
Freigabe/Approval
Manufacturer's Certificate
38/23
ENU
1701
1
Overview of Approved Porsche C40 Engine Oils (38/23)
Information
The period of validity for the approved engine oil is between 2 and 3 years. The expiration date of the
approval is given in the last column in the list.
Once this validity period has elapsed, the approval in question is revoked unless an extension is
requested by the relevant manufacturer.
Revision:
This bulletin replaces bulletin Group 1 22/23, dated September 5, 2023.
Model Year:
As of 2021
Vehicle Type:
All Porsche vehicles from MY 2021, for which Porsche C40 engine oils are allocated.
Overview:
Sales areas:
Manufacturer
Oil designation
Viscosity
SAE
Sales area
valid until
EXXONMOBIL
Corporation
Mobil 1 ESP x3 0W-40
0W-40
Worldwide
31.05.2025
EXXONMOBIL
Corporation
Mobil 1 ESP X4 0W-40
0W-40
Worldwide
31.05.2026
The respective sales area is also listed in order to clarify where the approved oils are available. Here are
the meanings of the symbols:
WW
Worldwide
ESP
Spain
EU
Europe
VIN
Finland
E-EU
Eastern Europe
FRA
France
USA
United States of America
GB
Great Britain and Northern Ireland
C-America
Central America
IRL
Ireland
N-America
North America
JAP
Japan
S-America
South America
MEX
Mexico
AF
Africa
NOR
Norway
Asia
Asia
NZL
New Zealand
FSU
Former Soviet Union
RUS
Russia
BS
Baltic countries
SCG
Croatia
AfterSales
Nov 14, 2023
Page 1 of 2
1
Freigabe/Approval
1701
Miscibility:
ENU
Manufacturer's Certificate
38/23
AUS
Australia
SVK
Slovakia
AUT
Austria
SWE
Sweden
BRA
Brazil
TWN
Taiwan
CAN
Canada
UAE
United Arab Emirates
CH
Switzerland
UKR
Ukraine
CHN
China
VNM
Vietnam
DEU
Germany
ZA
South Africa
All engine oils approved by Porsche can be mixed provided they are of the same Porsche oil
specification. This means that it is not necessary to flush the engine when the oil is changed if another
type of oil is used. However, since every brand of oil has a specially adapted unique composition, the
same brand and type of oil should be used for topping up between oil change intervals if possible.
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training
courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special
tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the
safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and
safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a
discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed.
© 2023 Porsche Cars North America, Inc.
Nov 14, 2023
Page 2 of 2
AfterSales
- Formulated for engines with 75,000 miles or more, Valvoline...
- Delivers 20% better wear protection and 15% better sludge...
- Extra detergents safeguard against friction, corrosion and...
- Advanced friction-fighting additives help maximize...
- Provides performance benefits for high mileage, new and...
- Designed for vehicles with 75,000 miles or more, Valvoline...
- Formulated with seal conditioners to help prevent oil leaks...
- Delivers 50% stronger wear protection than industry...
- Provides 20% stronger sludge defense than industry standards...
- Offers 2.5X better heat protection than industry standards...
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TSB/Document ID: No. 38-23
Replacement Service Bulletin Number:
MFR Communication Date: 2023-11-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
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