Quick Overview
- The type of ATF recommended by Subaru depends on various factors, including the vehicle’s model, year, and transmission type.
- 4-speed automatic transmissions in Subaru vehicles typically use Subaru Genuine ATF (K042100EA02) or equivalent fluids meeting the Subaru ATF Standard (K042100EA02).
- While using Subaru Genuine ATF is recommended, it is possible to use non-Subaru ATF fluids.
When it comes to maintaining the smooth and efficient operation of your Subaru’s automatic transmission, choosing the right automatic transmission fluid (ATF) is crucial. The type of ATF recommended by Subaru depends on various factors, including the vehicle’s model, year, and transmission type. This comprehensive guide will delve into the specifics of what kind of automatic transmission fluid does Subaru take and provide valuable insights to help you make an informed decision.
Subaru’s ATF Recommendations
Subaru recommends using specific types of ATF for its vehicles, which vary depending on the transmission type. Here’s a breakdown:
Continuously Variable Transmissions (CVTs)
CVTs in Subaru vehicles require Subaru Genuine CVT Fluid or equivalent fluids meeting the Subaru CVT Fluid Standard (K042100EA01).
4-Speed Automatic Transmissions
4-speed automatic transmissions in Subaru vehicles typically use Subaru Genuine ATF (K042100EA02) or equivalent fluids meeting the Subaru ATF Standard (K042100EA02).
5-Speed Automatic Transmissions
5-speed automatic transmissions in Subaru vehicles use Subaru Genuine ATF-HP (K042100EA03) or equivalent fluids meeting the Subaru ATF-HP Standard (K042100EA03).
ATF Specifications
Subaru’s recommended ATF fluids meet specific specifications to ensure optimal transmission performance. These specifications include:
Viscosity
The viscosity of ATF affects its flow characteristics and ability to protect transmission components. Subaru recommends ATF with the following viscosities:
- CVT Fluid: 0W-20
- ATF: 46W
- ATF-HP: 75W-90
Additives
ATF contains additives that enhance its properties and protect transmission components. Subaru’s recommended ATF fluids include additives such as:
- Anti-wear agents
- Friction modifiers
- Antioxidants
- Detergents
Checking and Changing ATF
Regularly checking and changing ATF is essential for maintaining transmission health. Here are the recommended intervals:
Checking ATF
- CVT Fluid: Every 30,000 miles or 2 years
- ATF: Every 60,000 miles or 4 years
- ATF-HP: Every 90,000 miles or 6 years
Changing ATF
- CVT Fluid: Every 60,000 miles or 4 years
- ATF: Every 90,000 miles or 6 years
- ATF-HP: Every 120,000 miles or 8 years
Using Non-Subaru ATF
While using Subaru Genuine ATF is recommended, it is possible to use non-Subaru ATF fluids. However, it is crucial to ensure that the non-Subaru ATF meets or exceeds the specifications recommended by Subaru. Using incompatible ATF can lead to transmission damage and void the warranty.
Consequences of Using the Wrong ATF
Using the wrong type of ATF can have detrimental effects on your Subaru’s transmission, including:
- Reduced transmission performance
- Increased wear and tear on transmission components
- Transmission failure
Choosing the Right ATF
When choosing ATF for your Subaru, consider the following factors:
- Vehicle model and year
- Transmission type
- Recommended ATF specifications
- Availability and cost of Subaru Genuine ATF and equivalent fluids
Recommendations: Ensuring Transmission Longevity
Selecting the correct automatic transmission fluid for your Subaru is vital for maintaining optimal transmission performance and longevity. By following Subaru’s recommendations and using ATF that meets the specified requirements, you can help protect your transmission from damage and extend its lifespan.
Frequently Asked Questions
Q: Can I use other brands of ATF in my Subaru?
A: Yes, you can use non-Subaru ATF fluids as long as they meet or exceed the specifications recommended by Subaru.
Q: How often should I change the ATF in my Subaru?
A: The recommended ATF change intervals vary depending on the transmission type. Refer to the section on “Checking and Changing ATF” for specific intervals.
Q: What happens if I use the wrong ATF in my Subaru?
A: Using the wrong ATF can lead to reduced transmission performance, increased wear and tear, and potentially transmission failure.
Q: Where can I find Subaru Genuine ATF?
A: Subaru Genuine ATF is available at Subaru dealerships and authorized service centers. You can also find it online from reputable retailers.
Q: Is it safe to mix different types of ATF?
A: No, it is not recommended to mix different types of ATF. Mixing fluids with different specifications can compromise their performance and potentially damage the transmission.
