Hyundai Sonata Fluid Capacities: A Comprehensive Guide
The Hyundai Sonata has undergone significant changes over its recent generations, particularly in terms of transmission and engine specifications. This guide focuses on the fluid capacities of the current (eighth) generation Sonata, introduced in 2020, and the previous (seventh) generation, which ran from 2014 to 2019. Understanding these specifications is crucial for proper maintenance and optimal performance of your Sonata.
Transmission Models and Specifications
Current Generation (2020-Present)
| Transmission | Year | ATF Capacity | ATF Specification |
|---|
| 8-speed automatic | 2020-Present | 6.7 liters | SP-IV |
| 6-speed manual | 2020-Present | 1.8-2.0 liters | API GL-4, SAE 75W/85 |
Previous Generation (2014-2019)
| Transmission | Year | ATF Capacity | ATF Specification |
|---|
| 6-speed automatic | 2014-2019 | 6.7 liters | SP-IV |
| 7-speed DCT | 2015-2019 | 1.9-2.0 liters | HK D-CTFHD-1 |
Engine Models and Specifications
Current Generation (2020-Present)
| Engine | Capacity | Engine Oil Capacity | Oil Specification |
|---|
| Smartstream G2.5 GDI | 2.5L | 5.8 liters | SAE 0W-20, API SN PLUS/SP or ILSAC GF-6 |
| Smartstream G1.6 T-GDI | 1.6L | 4.8 liters | SAE 0W-30, API SN PLUS/SP or ILSAC GF-6 |
Previous Generation (2014-2019)
| Engine | Capacity | Engine Oil Capacity | Oil Specification |
|---|
| Theta II 2.4 GDI | 2.4L | 4.8 liters | SAE 5W-30, API SN/ILSAC GF-5 |
| Theta II 2.0 T-GDI | 2.0L | 4.8 liters | SAE 5W-30, API SN/ILSAC GF-5 |
Other Fluid Capacities
- Coolant: 6.9-7.3 liters (varies by engine)
- Brake Fluid: 0.7-0.8 liters
- Power Steering Fluid: 1.0 liter (if equipped)
- Washer Fluid: 4.5 liters
Maintenance Tips
- Regular Oil Changes: Follow the manufacturer’s recommended intervals, typically every 7,500-10,000 miles for modern Sonatas.
- Transmission Fluid: Check and replace as per the owner’s manual. The latest models may have “lifetime” fluids, but it’s still wise to inspect regularly.
- Coolant Replacement: Generally recommended every 5 years or 60,000 miles, but always consult your specific model’s manual.
- Brake Fluid: Inspect annually and replace every 2-3 years for optimal braking performance.
Final Thoughts
Proper fluid maintenance is crucial for the longevity and performance of your Hyundai Sonata. While the latest models have improved efficiency and longer service intervals, regular checks and timely replacements are still essential. Always refer to your owner’s manual for the most accurate information specific to your Sonata’s year and model. By following these guidelines and using the correct fluids, you can ensure your Sonata continues to run smoothly for years to come.
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