Iso Grifo

Differential fluid capacity & service interval

Iso Grifo differential fluid capacity is 1,5 liters. Service intervals include checking at 5000 km and changing at 15000 km. The data covers 3 configurations.

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

TypeSpecifications
  • Grifo Lusso GL300 (1963-1974)
  • Rear
  • Use: Normal
  • Capacity 1,5 liter
  • Check 5000 km
  • Change 15000 km
  • Grifo Lusso GL340 (1963-1974)
  • Rear
  • Use: Normal
  • Capacity 1,5 liter
  • Check 5000 km
  • Change 15000 km
  • Grifo Lusso GL350 (1963-1974)
  • Rear
  • Use: Normal
  • Capacity 1,5 liter
  • Check 5000 km
  • Change 15000 km

Additional Notes

  • The Iso Grifo rear differential holds 1.5 liters of fluid across the GL300, GL340, and GL350 Lusso variants produced from 1963-1974.
  • A 1.5-liter differential capacity is a relatively modest fill volume, consistent with the compact rear axle housings typical of Italian grand touring cars of the era.
  • The GL300, GL340, and GL350 all share an identical check interval of 5,000 km under normal use conditions.
  • The fluid change interval for all three Lusso variants is set at 15,000 km under normal use conditions, placing the change frequency at three times the check interval.
  • The GL300, GL340, and GL350 specifications show no variation in differential fluid capacity or service intervals across the three distinct engine designations within the 1963-1974 production span.

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