Subaru Mini Jumbo / Rex (EU)

Coolant capacity & service interval

Subaru Mini Jumbo / Rex (EU) coolant capacity ranges from 2,6 to 2,8 liters. Service intervals include 40000 km/48 months and 50000 km/24 months. The data covers 2 configurations.

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

TypeSpecifications
Mini Jumbo / Rex, M80 (1989-1992)
  • Use: Normal
  • Capacity 2,6 liter
  • Change 50000 km/ 24 months
Mini Jumbo / Rex, M70 (1981-1989)
  • Use: Normal
  • Capacity 2,8 liter
  • Change 40000 km/ 48 months

Additional Notes

  • The Subaru Mini Jumbo / Rex M70, covering 1981-1989, carries a cooling system capacity of 2.8 liters, which is 0.2 liters more than the later M80 engine variant.
  • The M70 cooling system interval is set at 40,000 km or 48 months under normal use conditions, meaning coolant replacement falls due at whichever threshold arrives first.
  • The M80 engine, introduced in 1989, has a reduced cooling system capacity of 2.6 liters, reflecting the differences in engine displacement or cooling circuit design between the two engine generations.
  • Under normal use conditions, the M80 cooling system interval extends to 50,000 km, a 10,000 km increase over the M80's predecessor, though the time-based limit shortens considerably to 24 months compared to the M70's 48-month interval.
  • The 24-month time limit on the M80 means coolant changes are due more frequently on a calendar basis regardless of mileage accumulation, while the M70's 48-month limit allows up to four years between changes under the same normal use classification.

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