Proton X50

Automatic transmission fluid capacity & service interval

The Proton X50 uses automatic transmission fluid with a capacity of 4 liters. The data covers 2 configurations.

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

TypeSpecifications
  • X50 1.5T (110 kW) (2021- )
  • DCT
  • Use: Normal
  • Capacity 4 liter
  • Code: 7/1
  • X50 1.5T (130 kW) (2021- )
  • DCT
  • Use: Normal
  • Capacity 4 liter
  • Code: 7/1

Additional Notes

  • Both the 110 kW and 130 kW variants of the Proton X50 1.5T share an identical automatic transmission fluid capacity of 4 liters, despite differing in power output.
  • The 4-liter figure applies to the transaxle in each configuration, which is a combined transmission and differential unit typical of front-wheel-drive layouts.
  • Both configurations use a DCT, or dual-clutch transmission, which is a type of automated manual gearbox that uses two separate clutch packs and generally requires fluid that meets specific friction and viscosity standards suited to wet-clutch operation.
  • The capacity of 4 liters across both variants is consistent with a service fill rather than a full overhaul fill, as DCT transaxle overhaul procedures typically require additional fluid to account for passages, coolers, and components not fully drained during a standard service.
  • The specifications for both the 110 kW and 130 kW variants are listed under normal use conditions, meaning the 4-liter capacity and associated service parameters apply to standard operating environments rather than severe or high-stress duty cycles.

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