Subaru WRX
Data verified by Nick Marchenko, PhD
Maintaining the right engine oil is crucial for the performance and longevity of your 2015–2022 Subaru WRX. This model is equipped with two engine options: the FA20F 2.0L H-4 and the FA24F 2.4L H-4. The FA20F engine, found in models from 2015 to 2021, requires 5.4 quarts of 5W-30 oil, while the FA24F engine, available in 2022, needs slightly more at 5.6 quarts. Regular oil changes using the correct viscosity help ensure optimal engine function and efficiency.
In addition to oil capacity, it's important to monitor coolant levels as well. The FA20F engine has a coolant capacity of 8.9 quarts, whereas the FA24F engine holds 9.2 quarts. Keeping the coolant at the proper level helps prevent overheating and maintains engine performance. Regular maintenance checks will help you keep your Subaru WRX running smoothly for years to come.
Subaru WRX Oil Capacity
| Engine | Oil Capacity | Viscosity | Coolant | Years |
|---|---|---|---|---|
| FA20F FA FA20 The FA20F engine has a displacement of 2.0L H-4. The power output is 268 hp with a torque of 258 lb-ft. | 5.4 qt | 5W-30 | 8.9 qt | 2021, 2020, 2019, 2018, 2017, 2016, 2015 |
| FA24F FA FA24 The FA24F engine has a displacement of 2.4L H-4. The power output is 271 hp with a torque of 258 lb-ft. | 5.6 qt | 5W-30 | 9.2 qt | 2022 |
Subaru WRX – Frequently Asked Questions
How many quarts of oil does the Subaru WRX take?
The Subaru WRX oil capacity varies by engine: FA20F: 5.4 qt; FA24F: 5.6 qt. Always confirm the exact capacity for your specific engine before an oil change.
What type of oil does the Subaru WRX use?
The Subaru WRX uses 5W-30 engine oil across all its engine variants. Full synthetic oil meeting API/ILSAC specifications is strongly recommended for optimal engine protection and performance.
What is the coolant capacity of the Subaru WRX?
The coolant capacity for the Subaru WRX varies by engine: FA20F: 8.9 qt; FA24F: 9.2 qt. Use the coolant specification listed in the owner's manual for your engine variant.
What type of oil does the Subaru WRX use?
The Subaru WRX uses 5W-30 engine oil for both engine options, the FA20F and FA24F.
How many quarts of oil does the Subaru WRX take?
The FA20F engine requires 5.4 quarts of oil, while the FA24F engine needs 5.6 quarts.
How often should I change oil in a Subaru WRX?
It's generally recommended to change the oil in your Subaru WRX every 6,000 miles or 6 months, whichever comes first, but always consult your owner's manual for specific guidelines.
What is the coolant capacity of the Subaru WRX?
The FA20F engine has a coolant capacity of 8.9 quarts, while the FA24F engine has a capacity of 9.2 quarts.
Does the Subaru WRX need synthetic oil?
While synthetic oil is not mandatory, it is recommended for the Subaru WRX as it provides better protection and performance, especially in extreme temperatures.
What happens if I use the wrong oil viscosity in my Subaru WRX?
Using the wrong oil viscosity can lead to inadequate lubrication, increased engine wear, and potential overheating, ultimately affecting performance and longevity.
What is an oil life monitor and how does it work?
An oil life monitor is a system that tracks engine operating conditions and calculates when an oil change is necessary. It takes into account factors like mileage, temperature, and driving habits.
Can I mix synthetic and conventional oil?
While it's technically possible to mix synthetic and conventional oils, it's not recommended as it can reduce the effectiveness of the synthetic oil and lead to performance issues.
How do I know if my Subaru WRX has an oil leak?
Signs of an oil leak include visible oil spots under the vehicle, a burning oil smell, or a drop in oil levels on the dipstick. Regular checks can help identify leaks early.
What causes excessive oil consumption?
Excessive oil consumption can be caused by worn piston rings, valve seals, or gaskets. Regular maintenance and timely oil changes can help mitigate these issues.
Should I check my oil when the engine is hot or cold?
It's best to check your oil when the engine is warm but not hot, as this allows for a more accurate reading. Make sure to turn off the engine and let it sit for a few minutes before checking.
What is the difference between an oil change and a flush?
An oil change involves draining the old oil and replacing it with new oil, while a flush is a more intensive process that cleans the engine's internal components and removes sludge buildup.