Isuzu F-series, FSR/FRR

Clutch fluid capacity & service interval

Isuzu F-series, FSR/FRR clutch fluid capacity is 7,7 liters. Service intervals include 40000 km or 12 months and 20000 km. The data covers 6 configurations.

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

TypeSpecifications
FRR-210, FRD-210 (+DPF), 4HK1 (2024- )
  • Use: Normal
  • Capacity 7,7 liter
  • Change 40000 km/ 12 months
  • Code: Smoother
FRR-210, FRD-210 (+DPF), 4HK1 (2024- )
  • Use: Severe
  • Capacity 7,7 liter
  • Change 20000 km
  • Code: Smoother
FRR-240 (+DPF), 4HK1 (2024- )
  • Use: Normal
  • Capacity 7,7 liter
  • Change 40000 km/ 12 months
  • Code: Smoother
FRR-240 (+DPF), 4HK1 (2024- )
  • Use: Severe
  • Capacity 7,7 liter
  • Change 20000 km
  • Code: Smoother
FSR (+DPF), 4HK1 (2024- )
  • Use: Normal
  • Capacity 7,7 liter
  • Change 40000 km/ 12 months
  • Code: Smoother
FSR (+DPF), 4HK1 (2024- )
  • Use: Severe
  • Capacity 7,7 liter
  • Change 20000 km
  • Code: Smoother

Additional Notes

  • All listed configurations in the Isuzu F-series FSR/FRR clutch fluid specifications share a uniform system capacity of 7.7 liters, which is consistent with an automatic clutch system rather than a conventional hydraulic clutch circuit.
  • The FRR-210, FRD-210 (+DPF) with the 4HK1 engine carries a normal-use change interval of 40,000 km or 12 months, whichever comes first, alongside the 7.7-liter capacity figure.
  • Under severe-use conditions, the FRR-210 and FRD-210 (+DPF) 4HK1 interval drops to 20,000 km with no time-based limit stated, cutting the distance threshold in half compared to normal use.
  • The FRR-240 (+DPF) with the 4HK1 engine shares the identical 7.7-liter capacity and the same 40,000 km or 12-month normal-use interval as the FRR-210 and FRD-210 variants.
  • Severe-use service for the FRR-240 (+DPF) is also set at 20,000 km, matching the interval applied to the FRR-210 and FRD-210 under the same operating conditions.
  • The FSR (+DPF) 4HK1 configuration carries the same 7.7-liter capacity and 40,000 km or 12-month normal-use change interval seen across the other listed variants.
  • Under severe use, the FSR (+DPF) interval is reduced to 20,000 km, consistent with the pattern applied to the FRR-210, FRD-210, and FRR-240 severe-use rows.
  • The 7.7-liter capacity figure appearing uniformly across all six rows reflects a service fill volume for the automatic clutch system, not a partial top-up quantity, indicating a full fluid exchange at each service interval.

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