Renault RS

Differential fluid capacity & service interval

Renault RS differential fluid capacity is 3,55 liters. Service intervals include checking at 100 hours and changing at 1200 hours. The data covers 3 configurations.

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

TypeSpecifications
  • 61-14 RS (1985-1990)
  • Front
  • Use: Normal
  • Capacity 3,55 liter
  • Check 100 hours
  • Change 1200 hours
  • Code: (4x4)
  • 68-14 RS (1984-1990)
  • Front
  • Use: Normal
  • Capacity 3,55 liter
  • Check 100 hours
  • Change 1200 hours
  • Code: (4x4)
  • 75-14 RS (1984-1990)
  • Front
  • Use: Normal
  • Capacity 3,55 liter
  • Check 100 hours
  • Change 1200 hours
  • Code: (4x4)

Additional Notes

  • All three configurations — the 61-14 RS, 68-14 RS, and 75-14 RS — share an identical front differential fluid capacity of 3.55 liters, indicating a uniform housing design across the lineup for the covered model years.
  • The Renault RS 61-14 RS covers model years 1985-1990, while the 68-14 RS and 75-14 RS both span 1984-1990, making 1984 the earliest year represented in the front differential specifications.
  • A 3.55-liter capacity for a front differential is a moderately substantial fill volume, consistent with heavier-duty axle assemblies found in agricultural or utility equipment rather than light passenger vehicles.
  • The fluid check interval is set at 100 hours of operation under normal use conditions, reflecting a routine monitoring schedule intended to catch fluid level loss or contamination between full change intervals.
  • The fluid change interval across all three configurations is 1,200 hours under normal use conditions, which in hour-metered equipment represents a significant operational period before a full drain and refill is due.
  • The ratio between the check interval (100 hours) and the change interval (1,200 hours) means a fluid level inspection is performed twelve times for every single complete fluid change cycle across all listed configurations.

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