Datsun (Nissan) Silvia, S12

Coolant capacity & service interval

Datsun (Nissan) Silvia S12 uses coolant with a capacity of 8,6 liters. Service intervals occur every 40000 km or 48 months. The data covers 3 configurations.

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

TypeSpecifications
Silvia 1.8 Turbo, S12 (1984-1988)
  • Use: Normal
  • Capacity 8,6 liter
  • Change 40000 km/ 48 months
Silvia 2.0, S12 (1984-1988)
  • Use: Normal
  • Capacity 8,6 liter
  • Change 40000 km/ 48 months
Silvia 2.0 DOHC, S12 (1984-1988)
  • Use: Normal
  • Capacity 8,6 liter
  • Change 40000 km/ 48 months

Additional Notes

  • All three engine variants of the Datsun (Nissan) Silvia S12 covered in the 1984-1988 range share an identical cooling system capacity of 8.6 liters, meaning the total volume the system holds when fully drained and refilled is consistent across the 1.8 Turbo, 2.0 DOHC, and 2.0 configurations.
  • An 8.6-liter cooling system capacity is a moderately sized fill volume for a passenger car of the mid-1980s era, reflecting the full system volume including the radiator, hoses, heater core, and engine block passages.
  • The 1.8 Turbo variant carries the same 8.6-liter cooling system capacity as the naturally aspirated 2.0 engines, which is notable given that turbocharged engines typically generate additional heat loads that can influence cooling system design.
  • The 2.0 DOHC and the standard 2.0 configurations share the same 8.6-liter capacity and the same service interval, indicating no differentiation in cooling system volume between those two engine variants despite their differing valve train architectures.
  • The coolant change interval for all three variants under normal use conditions is set at 40,000 km or 48 months, whichever comes first, meaning the interval is governed by both distance and time, with the 48-month ceiling equating to a four-year maximum regardless of mileage accumulated.
  • A 40,000 km normal-use change interval was a common specification for coolant in vehicles of the 1984-1988 period, as conventional ethylene glycol-based coolants of that era were generally rated for shorter service lives compared to later extended-life formulations.

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