Porsche 914 (EU)

Manual transmission fluid capacity & service interval

Porsche 914 (EU) manual transmission fluid capacity is 2,5 liters. Service intervals include checking at 5000 km and changing at 20000 km. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
914/4 (1969-1973)
  • Use: Normal
  • Capacity 2,5 liter
  • Check 5000 km
  • Change 20000 km
  • Code: 5/1
914/6 (1969-1973)
  • Use: Normal
  • Capacity 2,5 liter
  • Check 5000 km
  • Change 20000 km
  • Code: 5/1

Additional Notes

  • Both the 914/4 and 914/6 variants share an identical manual transaxle fluid capacity of 2.5 liters, which is a service fill figure applicable to routine fluid maintenance rather than a full overhaul measurement.
  • The 2.5-liter capacity reflects the combined lubrication volume of the transaxle unit, where the transmission and differential functions are housed in a single integrated assembly, a layout common to rear-engined and mid-engined Porsche designs of the era.
  • Fluid level checks are specified at 5,000 km intervals under normal use conditions, a relatively short inspection cycle that reflects the sensitivity of transaxle assemblies to fluid degradation and minor leakage over time.
  • The fluid change interval is set at 20,000 km under normal use conditions, applying equally to both the four-cylinder 914/4 and the six-cylinder 914/6 across the 1969-1973 model years.
  • The fact that the 914/4 and 914/6 share the same 2.5-liter capacity and identical service intervals, despite differing engine configurations, indicates the two variants used the same transaxle housing dimensions and internal volume.

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