Ferrari 308 GTS/GTB/GT4

Power steering fluid capacity & service interval

Ferrari 308 GTS/GTB/GT4 uses power steering fluid with a capacity of 0,19 to 0,21 liter. Service intervals consist of a check every 10000 km. The data covers 3 configurations.

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

TypeSpecifications
308 GTB (1975-1984)
  • Use: Normal
  • Capacity 0,19-0,21 liter
  • Check 10000 km
308 GTS (1975-1984)
  • Use: Normal
  • Capacity 0,19-0,21 liter
  • Check 10000 km
308 GT4 (1974-1980)
  • Use: Normal
  • Capacity 0,19-0,21 liter
  • Check 10000 km

Additional Notes

  • All three variants in the Ferrari 308 lineup covered by these specifications use a steering box rather than a rack-and-pinion arrangement, which is the mechanical reason the fluid capacity is expressed as a relatively small, tightly bounded figure.
  • The Ferrari 308 GT4 (1974-1980), 308 GTB (1975-1984), and 308 GTS (1975-1984) share an identical steering box fluid capacity range of 0.19-0.21 liter, meaning the fill volume is consistent across all three body configurations.
  • A capacity stated as a range rather than a fixed value, as seen here with 0.19-0.21 liter, typically reflects acceptable variation during a service fill, accounting for minor differences in fluid remaining after a drain or slight manufacturing tolerances in the steering box housing.
  • The 10,000 km interval listed for all three variants is designated as a check interval under normal use conditions, meaning the service action at that mileage point is inspection and top-up rather than a full fluid replacement.
  • The 308 GT4 carries a production window starting in 1974, making it the earliest model in the group, while the 308 GTB and 308 GTS both begin in 1975, yet all three share the same steering box fluid specification throughout their respective production spans.

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