Dronningborg (Case IH) All models

Coolant capacity & service interval

Dronningborg (Case IH) All models use coolant with a capacity range of 28 to 35 liters. Service intervals include checking every 10 hours and changing every 24 months. The data covers 7 configurations.

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

TypeSpecifications
D 4000S, Perkins 4.236 (1982-1990)
  • Use: Normal
  • Capacity 28 liter
  • Check 10 hours
  • Change 24 months
D 4000S, Valmet D411 (1982-1990)
  • Use: Normal
  • Capacity 28 liter
  • Check 10 hours
  • Change 24 months
D 4500, Perkins 6.354.4 (1982-1990)
  • Use: Normal
  • Capacity 28 liter
  • Check 10 hours
  • Change 24 months
D 4500, Valmet 411DSL (1982-1990)
  • Use: Normal
  • Capacity 28 liter
  • Check 10 hours
  • Change 24 months
D 7500, Perkins (1982-1990)
  • Use: Normal
  • Capacity 35 liter
  • Check 10 hours
  • Change 24 months
D 7500, Valmet (1982-1990)
  • Use: Normal
  • Capacity 35 liter
  • Check 10 hours
  • Change 24 months
D 8500 (1982-1990)
  • Use: Normal
  • Capacity 33 liter
  • Check 10 hours
  • Change 24 months

Additional Notes

  • Across all Dronningborg (Case IH) models in the 1982-1990 range, cooling system checks are specified at 10-hour intervals under normal use conditions. A 10-hour check interval reflects the demanding operating environment of agricultural machinery, where coolant level and condition can be affected by heavy sustained loads.
  • All models share a 24-month coolant change interval under normal use conditions, regardless of engine make or displacement. A calendar-based interval of this length is standard for ethylene glycol-based coolants, which degrade chemically over time even when operating hours remain low.
  • The D 4000S and D 4500 models, whether fitted with Perkins or Valmet engines, share an identical cooling system capacity of 28 liters. The fact that two different engine families — the Perkins 4.236 and Valmet D411 in the D 4000S, and the Perkins 6.354.4 and Valmet 411DSL in the D 4500 — produce the same 28-liter figure suggests the cooling circuit volume is largely determined by the machine's shared bodywork and plumbing rather than the engine alone.
  • The D 7500, available with either Perkins or Valmet engines, carries a 35-liter cooling system capacity. At 35 liters, the D 7500 holds the largest coolant volume across all listed configurations, consistent with a larger combine requiring greater thermal management capacity.
  • The D 8500 is specified with a 33-liter cooling system capacity, which is 2 liters less than the D 7500 despite the D 8500 being a larger model designation. Capacity figures of this kind reflect the total volume of the entire cooling circuit, including the radiator, engine block, hoses, and reservoir, so differences between models do not necessarily correspond directly to engine size alone.
  • Each of the seven configurations listed covers the full 1982-1990 model year span without variation in capacity or service intervals within that period. No specification changes are recorded across those years for any of the listed engine and model combinations.

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