Kia Optima, JF (EU)

Manual transmission fluid capacity & service interval

Kia Optima, JF (EU) manual transmission fluid capacity ranges from 1,7 to 1,9 liters. Service intervals include checks at 48 months or 60000 km and fluid changes at 120000 km. The data covers 10 configurations.

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

TypeSpecifications
Optima 1.6 CRDi (2018-2020)
  • Use: Normal
  • Capacity 1,8-1,9 liter
  • Check 48 months/ 60000 km
  • Code: M6GF2 6/1
Optima 1.6 CRDi (2018-2020)
  • Use: Severe
  • Capacity 1,8-1,9 liter
  • Check 60000 km/ 48 months
  • Change 120000 km
  • Code: M6GF2 6/1
Optima 1.6 CRDi DPF (2018-2020)
  • Use: Normal
  • Capacity 1,8-1,9 liter
  • Check 48 months/ 60000 km
  • Code: M6GF2 6/1
Optima 1.6 CRDi DPF (2018-2020)
  • Use: Severe
  • Capacity 1,8-1,9 liter
  • Check 60000 km/ 48 months
  • Change 120000 km
  • Code: M6GF2 6/1
Optima 1.7 CRDi (2016-2018)
  • Use: Normal
  • Capacity 1,8-1,9 liter
  • Check 48 months/ 60000 km
  • Code: M6GF2 6/1
Optima 1.7 CRDi (2016-2018)
  • Use: Severe
  • Capacity 1,8-1,9 liter
  • Check 60000 km/ 48 months
  • Change 120000 km
  • Code: M6GF2 6/1
Optima 1.7 CRDi DPF (2016-2018)
  • Use: Normal
  • Capacity 1,8-1,9 liter
  • Check 48 months/ 60000 km
  • Code: M6GF2 6/1
Optima 1.7 CRDi DPF (2016-2018)
  • Use: Severe
  • Capacity 1,8-1,9 liter
  • Check 60000 km/ 48 months
  • Change 120000 km
  • Code: M6GF2 6/1
Optima 2.0 CVVL (2016-2018)
  • Use: Normal
  • Capacity 1,7-1,8 liter
  • Check 48 months/ 60000 km
  • Code: M6CF4 6/1
Optima 2.0 CVVL (2016-2018)
  • Use: Severe
  • Capacity 1,7-1,8 liter
  • Check 60000 km/ 48 months
  • Change 120000 km
  • Code: M6CF4 6/1

Additional Notes

  • The Kia Optima JF (EU) manual transaxle fluid capacity varies by engine family. The 1.6 CRDi and 1.7 CRDi variants share a capacity range of 1.8–1.9 liters, while the 2.0 CVVL uses a slightly lower range of 1.7–1.8 liters.
  • A capacity expressed as a range rather than a fixed value is typical for manual transaxles, where the lower figure represents a minimum acceptable level and the upper figure represents a full service fill measured at the filler plug.
  • Under normal use conditions, all listed engine variants share the same check interval of 48 months or 60,000 km, whichever comes first, with no fluid change specified.
  • Under severe use conditions, the check interval for all variants is expressed as 60,000 km or 48 months, and a fluid change at 120,000 km is added as a distinct service action not present in the normal use schedule.
  • The absence of a fluid change requirement under normal use conditions across all variants indicates the specification treats periodic inspection as sufficient for standard operating environments, reserving a mandatory change for severe duty cycles only.
  • The 1.6 CRDi and 1.7 CRDi engines each appear in two sub-variants — a standard version and a DPF-equipped version — yet both sub-variants within each engine family carry identical transaxle fluid capacities and service intervals.
  • The 1.7 CRDi and 1.7 CRDi DPF variants cover model years 2016-2018, while the 1.6 CRDi and 1.6 CRDi DPF variants cover 2018-2020, reflecting a generational engine change within the JF platform during that period.
  • The 2.0 CVVL, spanning 2016-2018, is the only petrol engine in the listed specifications and carries the narrower 1.7–1.8 liter capacity range, distinguishing it from the diesel variants at the lower end of the fill volume.

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