For a Subaru Forester, the correct transmission fluid depends on the type of transmission you have: older models with conventional automatics typically use Subaru ATF HP (Dexron II/III compatibility in many cases), while newer models with the Lineartronic CVT require Subaru CVT Fluid (CVTF) approved for CVTs. Always check your owner's manual or confirm with a Subaru dealer for your exact year and model.
Two main transmission families found in Foresters
The Forester line has used different transmissions over the years. Understanding which one you have is essential before selecting fluid. The following outlines the fluids typically recommended by Subaru for each transmission type.
- Older Foresters with conventional automatic transmissions (4EAT/5EAT): Use Subaru ATF HP (high-performance automatic transmission fluid). In many older manuals, Dexron II/III compatible ATF is acceptable if specified by Subaru for your model year.
- Newer Foresters with the Lineartronic CVT: Use Subaru CVT Fluid (CVTF) designed for CVTs. Do not substitute standard ATF or other CVT fluids unless Subaru explicitly approves them for your vehicle.
Concluding note: The right ATF depends on the transmission type. If you are unsure which transmission your Forester has, refer to the owner's manual, the vehicle’s service sticker, or contact a Subaru dealer. Using the wrong fluid can lead to improper shifting or damage.
How to identify your transmission type
Identify the transmission by model year, market, and any badges or documentation. Generally, Foresters before around 2014 were more often equipped with conventional automatics (4EAT/5EAT), while many models from 2014 onward use the Lineartronic CVT. If you cannot determine the type from the exterior, consult the VIN-based build sheet or the service manual for your exact vehicle.
- Check the owner’s manual or maintenance schedule for the listed transmission specification (ATF HP vs. CVTF).
- Look for a CVT badge on the vehicle or near the shifter in newer models.
- Ask a Subaru dealer or trusted mechanic to confirm based on the year, trim, and market.
Concluding note: Correctly identifying the transmission ensures you choose the proper fluid and avoid cross-contamination that can affect shifting and longevity.
Additional considerations when changing ATF
Beyond selecting the right fluid, follow best practices for maintenance and fluid life. Always use the fluid specified by Subaru for your transmission type, never mix different fluids, and adhere to the recommended change intervals found in your manual. If you are performing a DIY drain-and-fill, ensure you have the right tools and follow proper safety procedures.
Concluding note: Maintenance quality matters as much as the right fluid type. Using the correct CVTF or ATF and following Subaru’s service intervals helps preserve smooth shifting and prolongs transmission life.
Summary
The Subaru Forester uses two main transmission fluid families: ATF HP for older automatic transmissions (4EAT/5EAT) and CVTF for the Lineartronic CVT used in most newer models. Always verify your exact transmission type via the owner's manual or a dealer, and use the fluid specifically approved for that transmission. This ensures proper shifting performance and helps protect the transmission over time.
Does Subaru use special transmission fluid?
CVTs require specific fluids designed for their unique operating characteristics. Using the wrong fluid can cause severe damage to your transmission. Always use Subaru-approved CVT fluid or a compatible high-quality alternative like ENEOS ECO CVTF or ENEOS Import CVTF Model S.
What kind of transmission fluid goes in a Subaru Forester?
Dexron III
FRAM – Dexron III / Mercon Multi-Vehicle Automatic Transmission Fluid: 1 Quart (Part No. F420)
What color is the hardest to keep clean on the Forester?
Greys/silver (and white & bronze) are always easiest to keep clean externally. Black and the blue will always show the dirt and have to be washed far more often (unless you're already OCD and wash your car often regardless of color, and then this won't be an issue for you).
What kind of ATF does Subaru use?
The ATF-HP PS Fluid – Subaru (SOA427V1500) is a genuine OEM fluid specifically formulated for Subaru automatic transmissions and power steering systems.