Mazda CX-90 (USA / CAN)

Coolant capacity & service interval

Mazda CX-90 (USA / CAN) coolant capacity ranges from 5,4 liters to 11,3 liters. Service intervals include 60000 miles or 60 months and 120000 miles or 120 months. The data covers 8 configurations.

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

TypeSpecifications
CX-90 e-PHEV AWD (2023- )
  • Use: Normal
  • Capacity 9,2 liter
  • Change 60000 miles/ 60 months
CX-90 e-PHEV AWD (2023- )
  • Use: Initial service
  • Capacity 9,2 liter
  • Change 120000 miles/ 120 months
  • CX-90 e-PHEV AWD (2023- )
  • EV system
  • Use: Normal
  • Capacity 6,5 liter
  • Change 60000 miles/ 60 months
  • CX-90 e-PHEV AWD (2023- )
  • EV system
  • Use: Initial service
  • Capacity 6,5 liter
  • Change 120000 miles/ 120 months
CX-90 e-SkyActiv AWD (2023- )
  • Use: Normal
  • Capacity 10,2 liter
  • Capacity 5,4 liter (intercooler)
  • Change 60000 miles/ 60 months
CX-90 e-SkyActiv AWD (2023- )
  • Use: Initial service
  • Capacity 10,2 liter
  • Capacity 5,4 liter (intercooler)
  • Change 120000 miles/ 120 months
CX-90 e-SkyActiv High Output AWD (2023- )
  • Use: Normal
  • Capacity 11,3 liter
  • Capacity 5,4 liter (intercooler)
  • Change 60000 miles/ 60 months
CX-90 e-SkyActiv High Output AWD (2023- )
  • Use: Initial service
  • Capacity 11,3 liter
  • Capacity 5,4 liter (intercooler)
  • Change 120000 miles/ 120 months

Additional Notes

  • The Mazda CX-90 e-PHEV AWD carries two separate cooling circuits, one for the combustion engine system at 9.2 liters and one for the EV system at 6.5 liters, bringing the combined coolant volume across both circuits to 15.7 liters.
  • The e-PHEV AWD cooling system and EV system circuits share the same service interval structure: a normal change interval of 60,000 miles or 60 months, with an extended initial service interval of 120,000 miles or 120 months.
  • The initial service interval of 120,000 miles or 120 months on the e-PHEV AWD reflects the use of a long-life coolant formulation at the factory fill, which is designed to last twice as long as the subsequent normal change interval before the first scheduled replacement.
  • The e-SkyActiv AWD cooling system holds 10.2 liters in the main circuit, while the e-SkyActiv High Output AWD holds a larger 11.3 liters, indicating a greater engine cooling demand in the higher-output variant.
  • Both e-SkyActiv variants share an identical intercooler circuit capacity of 5.4 liters, meaning the intercooler cooling loop is consistent regardless of whether the standard or High Output engine is fitted.
  • The e-SkyActiv AWD total coolant volume across the main and intercooler circuits is 15.6 liters, while the High Output AWD version totals 16.7 liters, reflecting the additional thermal management requirements of the more powerful engine.
  • Across all three powertrain configurations, the normal change interval is set at 60,000 miles or 60 months, and the initial service interval is set at 120,000 miles or 120 months, applying uniformly to every cooling circuit listed in the specifications.

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