Fluid · Manual Transmission
Manual Transmission
for 1986 Porsche 911 3.2L H6 · RWD
Fluid Type
75W-90 GL-4 or GL-5
Spec: API GL-4 (preferred) or GL-5
Capacity
3.2qt
3.03 L
Drain & Refill
3.2 qt
3.03 L
Change Interval
30,000 mi
48,270 km
Data quality
Book-style estimate
Not yet expert-verified. Have the real number? Correct it below — takes 30 seconds.
Notes
915 transmission. Use GL-4 to protect synchros; GL-5 acceptable but may cause issues long-term.