Proton Inspira

Manual transmission fluid capacity & service interval

Proton Inspira manual transmission fluid capacity is 2,5 liters. Service intervals include checking every 20000 km or 12 months, and changing at 100000 km or 200000 km. The data covers 2 configurations.

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

TypeSpecifications
Inspira 1.8, P3-90A (2011-2019)
  • Use: Normal
  • Capacity 2,5 liter
  • Check 20000 km/ 12 months
  • Change 200000 km
  • Code: F5MBB 5/1
Inspira 1.8, P3-90A (2011-2019)
  • Use: Severe
  • Capacity 2,5 liter
  • Check 20000 km/ 12 months
  • Change 100000 km
  • Code: F5MBB 5/1

Additional Notes

  • The Proton Inspira 1.8 with the P3-90A manual transaxle carries a fluid capacity of 2.5 liters, a figure consistent with a service fill rather than a full overhaul quantity, as transaxle overhauls typically require additional fluid to account for residual drainage and component displacement.
  • Under normal use conditions, the change interval for the P3-90A manual transaxle fluid extends to 200,000 km, placing it among the longer drain intervals seen in manual transmission service schedules.
  • Under severe use conditions, the same P3-90A transaxle requires a fluid change at 100,000 km, exactly half the normal-use interval, reflecting the accelerated fluid degradation associated with demanding operating environments such as frequent towing, stop-and-go traffic, or extreme temperatures.
  • The check interval of 20,000 km or 12 months applies equally to both normal and severe use conditions for the 2011-2019 Inspira 1.8, meaning the inspection frequency does not change regardless of how the vehicle is operated.
  • The 2.5-liter capacity remains constant across both use condition rows for the P3-90A transaxle, confirming the fluid volume specification is independent of the service interval applied.

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