The 2018 Subaru WRX oil capacity iS4.5 quarts. Having high quality oil is key for the engine to run smoothly. You will run into issues with the oil at some point. Knocking noise may show up from the engine. Bad oil can cause the engine to stop working. A common problem is an awful burning smell. This needs to be inspected as soon as possible or the car might explode. You could experience bad gas mileage. Your oil needs to be replaced eventually. Every 5,000 to 10,000 miles is a good rule of thumb. If You don't replace it, there will be issues with the engine.
Daniel P
May 21, 2020
2018 subaru wrx with Fa20DIT engine oil capacity with filter change is 5.4Qt of 5w30 synthetic oil. If filter is not being replaced capacity is reduced to 5.2Qt.
Stephen M.
April 10, 2020
The 2018 subaru wrx has an engine oil capacity of 4.8 Quarts.
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