The 2017 Subaru Crosstrek requires 0W-20 full-synthetic engine oil. Use an oil that meets ILSAC GF-5/API SN specifications and replace the oil filter with every change.
Recommended oil type and specifications
The Crosstrek's 2.0-liter FB20 boxer engine is designed to run on 0W-20 full-synthetic oil. Subaru specifies this viscosity and quality level to optimize fuel efficiency and engine protection. In practice, choose a 0W-20 oil that meets ILSAC GF-5 (or newer) and API SN (or newer) standards. While 0W-20 is the default recommendation for most climates, always consult the owner’s manual for any climate-specific guidance or approved alternatives.
Oil capacity and fill guidance
When performing an oil change, plan for roughly 4.2 quarts (about 4.0 liters) of oil, including the filter. Begin with a warm engine, drain the old oil completely, replace the oil filter, then add oil gradually until the dipstick indicates the correct level. Avoid overfilling, which can cause oil foaming and engine damage.
Branding, warranty, and practical tips
Use a reputable 0W-20 synthetic oil that carries the ILSAC GF-5/API SN certification. Subaru-approved or Subaru Genuine Engine Oil is a safe choice, but any major brand meeting these specs is acceptable. Keep receipts and follow the official maintenance schedule to align with warranty expectations.
Maintenance intervals overview
Oil change intervals depend on driving conditions and oil type. Follow the maintenance schedule in the owner’s manual. Typical guidance prioritizes more frequent changes with conventional oil and allows longer intervals with full synthetic oil, subject to driving habits and climate. When in doubt, err on the side of conservative scheduling to protect the engine over the long term.
Summary
For a 2017 Crosstrek, the standard oil is 0W-20 full synthetic, with a fill of about 4.2 quarts including the filter. Use a grade that meets ILSAC GF-5/API SN and consult the owner’s manual for any climate-specific guidance and exact maintenance intervals. Regular, proper changes help maintain performance and longevity.