Over time, the oil loses its critical properties that prevent. Changing the front and rear differential fluid helps maintain your vehicle’s performance and prevent potential damage. The front diff shares fluid with the transmission gears (also has seperate clutch fluid in the form of dctf)
Does a 997.2 C2 have a rear diff? - Rennlist - Porsche Discussion Forums
The front diff is connected with the transmission gearbox, that fluid should be changed out also, i think it's 75w90 in.
On average, the cost for a porsche macan differential fluid service replacement is $126 with $31 for parts and $95 for labor
Learn how to change differential fluid step by step, including tools, fluid tips, torque basics,. On average, the cost for a porsche macan differential/gear oil replacement is $171 with $31 for parts and $140 for labor Replacing the differential fluid is an easy diy job that should be performed annually if you use your cayenne.
