Fluid · Rear Differential
Rear Differential
for 2016 Porsche Cayman 3.8L H6 GT4 · RWD
Fluid Type
75W-90 GL-5 synthetic limited slip
Spec: Porsche 999.917.021.00
Capacity
1.2qt
1.14 L
Drain & Refill
1.2 qt
1.14 L
Change Interval
30,000 mi
48,270 km
Data quality
Book-style estimate
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Notes
Mechanical limited-slip differential standard on GT4. More aggressive service interval (30k) recommended due to track-focused use and higher loads.
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