MOBIL 1™ C40 GT 0W-40

Advanced Synthetic Technology Engine Oil

M1 C40 GT 0W 40 product shot
Mobil 1™ C40 GT 0W-40 is an advanced synthetic technology engine oil specifically engineered for high performing Porsche GT Engines. Mobil 1 C40 GT 0W-40 has been designed to protect the engine from wear in extreme conditions and prevent sludge formation. It is the technology developed within the framework of the collaboration established with Porsche AG for over the last 25 years.

Features and Benefits

Mobil 1 C40 GT 0W-40 is made with a proprietary blend of leading edge components formulated to be fully compatible with Porsche GT engines. Mobil 1™ C40 GT 0W-40 has been designed to help deliver outstanding performance and protection in extreme conditions. It is distinguishable by its unique green colour. Key features and potential benefits¹ include:



Advantages and Potential Benefits

Active cleaning agents

Contributes to deliver outstanding engine cleanliness and sludge control

Outstanding high-temperature thermal and oxidation stability

Helps to reduce oil aging for protection throughout your oil drain interval

High temperature oil film resistance

Contributes to outstanding wear protection

Enhanced frictional properties

Helps improve fuel economy²



Mobil 1 C40 GT 0W-40 is specifically designed for Porsche GT engines requiring C40 GT specification³. Mobil 1 C40 GT 0W-40 is required by Porsche for the following models:

• 911 GT3 (991 and newer)

• 911 GT3 Cup (991/992)

• 911 GT3 R (991/992)

• 911 GT3 RS (991 and newer)

• 911 RSR (991)

• 911 R (991)

• 911 Speedster (991)

• 911 S/T (992)

• 718 Cayman GT4 RS (982)

• 718 Cayman GT4 RS Clubsport (982)

• 718 Spyder RS (982)


Mobil 1 C40 GT 0W-40 is not suitable for Porsche vehicles requiring an A40, C20, C30 or C40 approved Mobil 1 engine oils.




1: Based on industry and OEM standard engine tests.

2: Actual savings are dependent upon vehicle and engine type, outside temperature and barometric pressure, driving conditions and your current engine oil viscosity.

3: Always consult the owner's manual of the vehicle for the manufacturer's recommended viscosity grade and specifications.



Specifications and Approvals


This product has the following approvals:

Porsche C40 GT


Properties and Specifications




SAE 0W-40

Density @ 15 C, g/ml, ASTM D1298


Kinematic Viscosity @ 100 C, mm2/s, ASTM D445


Kinematic Viscosity @ 40 C, mm2/s, ASTM D445


Viscosity Index, ASTM D2270


Hi-Temp Hi-Shear Viscosity @ 150 C 1x10(6) sec(-1), mPa.s, ASTM D4683


Pour Point, °C, ASTM D97


Flash Point, Cleveland Open Cup, °C, DIN EN ISO 2592



Health and safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @