changing gear set oil?

2015 PORSCHE MACAN
136,000 MILES • 3.0L • 6 CYL • TURBO • 4WD • AUTOMATIC
Avatar
DIVIDES
  • MEMBER
  • 903 POSTS
can you tel me what is a gear set oil? Saw few people change it. It is not the PDK fluid, but something that is on the front of the transmission that is called gear set oil
Dec 17, 2025 at 3:26 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,855 POSTS
Great question, this one confuses a lot of people on the Macan, and you’re absolutely right: it is NOT the PDK fluid.

The gear set oil is

Front transfer case / PTM (Porsche Traction Management) gear oil

They say it is lifetime oil, but if you love your car I would change it out.

Fluid type: Porsche-approved gear oil (often 75W-90 spec)
Capacity: 0.8-1.0 liters

If you need help with the service let me know and I will give you instructions. Ken
Dec 18, 2025 at 1:25 PM
Avatar
DIVIDES
  • MEMBER
  • 903 POSTS
I see. but there is a guy who changed all 3, transfer case, ODK and gear set, and it's not the transfer case per se but a part of the transmission that is up front of the PDK pan
Dec 18, 2025 at 1:34 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,855 POSTS
Yep, this phrase is used to service the drivetrain, what ever that entails.
Dec 19, 2025 at 10:33 AM