Isuzu NHR

Power steering fluid capacity & service interval

Isuzu NHR power steering fluid capacity ranges from 0,5 to 1,6 liters. Service intervals include checking every 10000 km or 6 to 18 months and changing every 40000 km or 24 months. The data covers 4 configurations.

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

TypeSpecifications
NHR 55 (1996-2007)
  • Use: Normal
  • Capacity 1,6 liter
  • Check 10000 km/ 6 months
  • Change 40000 km/ 24 months
NHR 55 (1996-2007)
  • Use: Normal
  • Capacity 0,5 liter
  • Check 10000 km/ 18 months
NHR 69 (1996-2007)
  • Use: Normal
  • Capacity 1,6 liter
  • Check 10000 km/ 6 months
  • Change 40000 km/ 24 months
NHR 69 (1996-2007)
  • Use: Normal
  • Capacity 0,5 liter
  • Check 10000 km/ 18 months

Additional Notes

  • The Isuzu NHR power steering system holds 1.6 liters of fluid, a capacity typical of a hydraulic assist circuit that includes the reservoir, pump, and lines rather than a simple top-up volume.
  • Both the NHR 55 and NHR 69 share an identical power steering fluid capacity of 1.6 liters, indicating no variation in hydraulic system volume between the two configurations across the 1996-2007 span.
  • The steering box on both the NHR 55 and NHR 69 holds 0.5 liters, a figure consistent with a recirculating-ball or worm-and-sector gear housing that retains a relatively small lubricant volume compared to the main hydraulic circuit.
  • Power steering fluid checks are scheduled at 10,000 km or every 6 months under normal use conditions, reflecting a relatively frequent monitoring interval for a hydraulic fluid that can degrade or leak without obvious external signs.
  • The steering box fluid check interval is set at 10,000 km or every 18 months under normal use, a longer calendar period than the power steering circuit check, which aligns with the more sealed and static nature of a gear housing compared to a pressurized hydraulic loop.
  • Power steering fluid changes are specified at 40,000 km or every 24 months under normal use conditions, a service interval that accounts for oxidation and moisture absorption in hydraulic fluid over time regardless of mileage accumulation.
  • The 40,000 km or 24-month change interval applies equally to both the NHR 55 and NHR 69 power steering systems, with no differentiation in replacement frequency between the two trim configurations.

Other Systems