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Using the correct transmission fluid is essential for keeping your Kia’s gearbox running smoothly and efficiently. Modern Kia automatics are highly sensitive to the type of ATF used - the wrong fluid can cause premature wear, hard shifts or slipping.
Kia don't have a specific range of gearbox oil specifications; they follow what their transmission builders recommend. Because of this they have a large number of specs (found in your owners manuals), and their fleet often have different oils from one model to the next. However, there are a few common ones:
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Choosing the correct automatic transmission fluid (ATF) for your Kia is essential to keep your gearbox running smoothly and reliably. Using the wrong type can cause harsh shifts, overheating, or even gearbox damage, so it’s important to match your fluid exactly to the manufacturer’s specification.
Most Kia vehicles built from around 2010 onwards require SP-IV or SP-IV-M specification ATF, while older models may use SP-III or earlier formulations. You can confirm your vehicle’s requirement in the owner’s manual, on the gearbox label, by checking official Kia dealer data, or by getting in touch with us.
Here’s a quick overview of the typical fluid types used across popular Kia models:
Kia Picanto / Rio / Ceed (Petrol & Diesel Automatics) – typically SP-IV
Kia Sportage / Sorento (6-speed & 8-speed Automatics) – SP-IV-M or SP-IV-RR
Kia Niro Hybrid / e-Niro / EV6 / Soul EV – use special low-viscosity ATF designed for hybrid or electric drive units
Older Kia models (pre-2006) – may require SP-II or Dexron-type fluids
Tip: Always confirm the exact specification before purchase - using the wrong Kia transmission fluid can lead to costly repairs.
Kia automatic transmission fluid isn’t just a lubricant — it’s a precision hydraulic fluid. It controls gear pressure, clutch engagement, and torque converter behaviour. Using a high-quality, specification-approved ATF ensures:
Smooth and consistent gear changes
Reduced wear on internal components
Proper cooling and protection under load
Extended gearbox life
Recommended fluids from trusted brands include Fuchs Titan ATF 4400, TotalEnergies Fluidmatic LV MV ATF, and Motul Multi ATF - all engineered to meet or exceed the requirements of Kia automatic gearboxes.
Kia typically recommends changing automatic transmission fluid every 60,000–100,000 miles, though this may vary depending on:
Driving conditions (e.g. heavy traffic or short trips)
Towing or carrying heavy loads
Ambient temperature extremes
When changing your Kia’s transmission fluid:
Always follow the manufacturer’s refill procedure
Many gearboxes require checking levels at a specific temperature
Fluid capacities usually range between 6–8 litres, depending on model and transmission type
Some systems only allow partial drains unless fully flushed
If you’re unsure about your model’s capacity or refill process, contact Opie Oils - we can check the exact Kia ATF requirement for you.
When shopping for Kia automatic transmission fluid, make sure the product meets the exact specification (e.g. SP-IV, SP-IV-M, or SP-IV-RR). Using an incompatible ATF can cause:
Rough or delayed gear shifts
Overheating or foaming
Clutch slippage
Reduced gearbox lifespan
At Opie Oils, we stock a full range of Kia-approved ATFs from top brands such as Motul, Fuchs, Millers Oils, and Mobil, all meeting or exceeding Kia specifications.
