Kia Rio, SC (USA / CAN)

Manual transmission fluid capacity & service interval

Kia Rio, SC (USA / CAN) manual transmission fluid capacity ranges from 1,5 to 1,7 liters. Service intervals include a check at 37500 miles or 30 months and a change at 75000 miles. The data covers 8 configurations.

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

TypeSpecifications
Rio 1.6 (2020-2023)
  • Use: Normal
  • Capacity 1,5-1,6 liter
  • Check 37500 miles/ 30 months
  • Code: M6CF1 6/1
Rio 1.6 (2020-2023)
  • Use: Severe
  • Capacity 1,5-1,6 liter
  • Check 37500 miles/ 30 months
  • Change 75000 miles
  • Code: M6CF1 6/1
Rio 1.6 (2019-2019)
  • Use: Normal
  • Capacity 1,6-1,7 liter
  • Check 37500 miles/ 30 months
  • Code: M6CF1 6/1
Rio 1.6 (2019-2019)
  • Use: Severe
  • Capacity 1,6-1,7 liter
  • Check 37500 miles/ 30 months
  • Change 75000 miles
  • Code: M6CF1 6/1
Rio 1.6 (2019-2020)
  • Use: Normal
  • Capacity 1,6-1,7 liter
  • Check 37500 miles/ 30 months
  • Code: M6CF1 6/1
Rio 1.6 (2019-2020)
  • Use: Severe
  • Capacity 1,6-1,7 liter
  • Check 37500 miles/ 30 months
  • Change 75000 miles
  • Code: M6CF1 6/1
Rio 1.6 (2017-2018)
  • Use: Normal
  • Capacity 1,6-1,7 liter
  • Check 37500 miles/ 30 months
  • Code: M6CF1 6/1
Rio 1.6 (2017-2018)
  • Use: Severe
  • Capacity 1,6-1,7 liter
  • Check 37500 miles/ 30 months
  • Change 75000 miles
  • Code: M6CF1 6/1

Additional Notes

  • The Kia Rio SC (USA/CAN) manual transaxle fluid capacity for the 1.6-liter engine in 2017-2019 falls within a 1.6–1.7 liter range, which reflects a service fill tolerance rather than a fixed single value, accounting for minor variation during a drain-and-refill procedure.
  • Starting with the 2020-2023 model years, the manual transaxle fluid capacity shifts to a 1.5–1.6 liter range, representing a reduction compared to the 1.6–1.7 liter range specified for earlier model years under the same 1.6-liter engine designation.
  • Under normal use conditions across all covered model years, the specification calls for a fluid check at 37,500 miles or 30 months, with no fluid change interval listed, meaning a drain-and-refill is not scheduled under normal driving conditions.
  • Under severe use conditions, the same 37,500-mile or 30-month check interval applies, but an additional fluid change at 75,000 miles is also specified, making the change interval exactly double the check interval.
  • The 30-month time-based check interval runs alongside the 37,500-mile mileage interval under both normal and severe conditions, meaning whichever threshold is reached first would trigger the inspection regardless of driving frequency.
  • The severe-use change interval of 75,000 miles applies consistently across all model year groups from 2017 through 2023, with no variation tied to the capacity change introduced in the 2020-2023 range.

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