2017 Subaru Forester Transmission Fluid Type Guide

Understanding Transmission Fluid for Your Subaru Forester

When it comes to keeping your Subaru Forester running smoothly, one of the most critical components is the transmission fluid. This fluid is essential for lubricating the moving parts within the transmission, ensuring that everything operates efficiently. For the 2017 model, Subaru has specific recommendations that you need to follow to maintain optimal performance.

Manufacturer’s Recommendations

Subaru specifies that the 2017 Forester requires a particular type of transmission fluid to function correctly. The recommended fluid is:

– Subaru CVT Fluid: This is a specialized fluid designed for Continuously Variable Transmissions (CVT), which is what the 2017 Forester uses. Using the correct fluid is crucial for maintaining the performance and longevity of your transmission.

Specifications of Subaru CVT Fluid

The Subaru CVT fluid has specific properties that make it suitable for the Forester’s transmission system. Here are some key specifications:

– Viscosity: The fluid typically has a viscosity rating that allows it to flow easily at various temperatures, ensuring that it can lubricate effectively under different driving conditions.
– Additives: Subaru CVT fluid contains specific additives that help reduce wear and tear on transmission components, improve shifting performance, and prevent foaming.
– Compatibility: This fluid is formulated to work seamlessly with the materials used in the Subaru transmission, preventing potential damage that could occur with incompatible fluids.

Why Using the Right Fluid Matters

Using the correct transmission fluid is not just a suggestion; it’s a necessity. Here’s why:

• Performance: The right fluid helps maintain smooth shifting and overall performance of the transmission.


• Longevity: Proper lubrication reduces wear on internal components, extending the life of your transmission.


• Warranty: Using fluids that do not meet manufacturer specifications can void your warranty, leading to costly repairs down the line.

Where to Find Subaru CVT Fluid

You can find Subaru CVT fluid at various locations:

1. Subaru Dealerships: The most reliable source, ensuring you get the exact fluid recommended for your vehicle.


2. Auto Parts Stores: Many stores carry Subaru-branded fluids or equivalent products that meet the same specifications.


3. Online Retailers: Websites often have competitive pricing and can deliver the fluid directly to your door.

In summary, using the correct transmission fluid for your 2017 Subaru Forester is essential for maintaining its performance and longevity. Always refer to the manufacturer’s recommendations and ensure that you are using Subaru CVT fluid to keep your vehicle running smoothly.

Recommended Oil Brands for Your Subaru Forester’s Transmission Fluid

When it comes to maintaining your 2017 Subaru Forester, choosing the right transmission fluid is crucial. While Subaru recommends their own CVT fluid, many owners have shared their experiences with alternative brands that meet the necessary specifications. Below, we’ll explore some of the most popular options based on feedback from forums and owner discussions.

Subaru CVT Fluid

Let’s start with the obvious choice. Subaru’s own CVT fluid is specifically formulated for their vehicles. Owners generally report that using this fluid leads to the best performance and longevity of the transmission. Here are some points to consider:

• Designed specifically for Subaru’s CVT systems.


• Widely available at dealerships and online.


• Maintains warranty compliance.

Valvoline CVT Fluid

Valvoline is a well-known brand in the automotive industry, and many Subaru owners have turned to their CVT fluid as an alternative. Feedback from users indicates that:

• It provides smooth shifting and reliable performance.


• It is often more affordable than Subaru’s branded fluid.


• Many users report no issues when switching from Subaru fluid to Valvoline.

Castrol Transmax CVT Fluid

Another popular choice among Subaru enthusiasts is Castrol Transmax CVT fluid. This brand has garnered positive reviews for its performance in various vehicles, including the Forester. Key points include:

• Offers excellent protection against wear and tear.


• Users appreciate its ability to maintain performance in extreme temperatures.


• Compatible with many CVT systems, making it a versatile option.

Mobil 1 CVT Fluid

Mobil 1 is synonymous with high-quality lubricants, and their CVT fluid is no exception. Many Subaru owners have shared their experiences using Mobil 1, highlighting:

• Exceptional performance and reliability.


• Good feedback on shifting smoothness and responsiveness.


• Widely available at auto parts stores and online.

Amsoil CVT Fluid

Amsoil is known for its premium synthetic oils, and their CVT fluid has gained traction among Subaru owners. Here’s what users have to say:

• Reported improvements in fuel efficiency.


• Long-lasting performance with extended drain intervals.


• Highly regarded for its protective properties against wear.

Royal Purple CVT Fluid

Royal Purple is another brand that has made a name for itself in the performance lubricant market. Subaru owners have noted:

• Enhanced shifting performance compared to standard fluids.


• Good thermal stability, which is crucial for CVT systems.


• Many users have had positive experiences with their vehicles after switching to Royal Purple.

Owner Experiences and Recommendations

In various online forums, Subaru owners often share their experiences with different brands. Here are some common themes:

1. Many owners emphasize the importance of sticking to fluids that meet Subaru’s specifications to avoid any potential issues.


2. Several users have reported that switching to a non-Subaru fluid has not caused any noticeable problems, as long as the fluid meets the required standards.


3. Some owners recommend conducting a fluid change with a reputable brand if they notice any performance issues with the factory fluid.

Ultimately, while Subaru’s CVT fluid is the safest bet for your 2017 Forester, several reputable brands have proven effective based on owner feedback. Always ensure that any alternative fluid meets the necessary specifications to keep your transmission running smoothly.

Change Interval for Your Subaru Forester’s Transmission Fluid

Maintaining the right change interval for your transmission fluid is essential for the longevity and performance of your 2017 Subaru Forester. While the manufacturer may provide a general guideline, real-world experiences and statistical data can help clarify what you should consider for optimal maintenance.

Recommended Change Interval

Subaru typically recommends changing the CVT fluid every 30,000 to 60,000 miles (approximately 48,000 to 96,000 kilometers). However, this can vary based on driving conditions and habits. Here are some factors to consider:

• Driving Conditions: If you frequently drive in stop-and-go traffic, tow heavy loads, or operate in extreme temperatures, you may need to change the fluid more often.


• Owner Feedback: Many Subaru owners on forums suggest changing the fluid closer to the 30,000-mile mark for better performance and reliability.


• Manufacturer Guidelines: Always refer to your owner’s manual for the most accurate recommendations specific to your vehicle.

Partial Transmission Oil Changes

In many cases, a complete transmission fluid change is not feasible without removing the transmission from the vehicle. This is due to the design of most modern transmissions, including the CVT in the Forester. Here’s why partial changes are often the practical choice:

Understanding Partial Changes

Partial transmission fluid changes involve draining a portion of the old fluid and replacing it with new fluid. This method is often more accessible and can still provide significant benefits:

• Cost-Effective: Partial changes are generally less expensive than a full fluid exchange, which may require specialized equipment.


• Less Downtime: You can complete a partial change more quickly, minimizing the time your vehicle is out of commission.


• Improved Fluid Quality: Regular partial changes can help maintain better fluid quality over time, as you are consistently introducing fresh fluid into the system.

Statistical Data and Authoritative Sources

According to various automotive maintenance studies and reports, regular fluid changes—whether partial or full—can significantly impact the lifespan of the transmission. For instance:

1. A study by the Automotive Maintenance and Repair Association found that vehicles with regularly changed transmission fluid experience fewer transmission failures.


2. Research published in the Journal of Automotive Engineering indicates that maintaining clean fluid can reduce wear on transmission components by up to 50%.


3. Many manufacturers, including Subaru, emphasize the importance of fluid maintenance in their service bulletins, highlighting that neglecting fluid changes can lead to costly repairs.

By adhering to the recommended change intervals and considering partial fluid changes, you can help ensure that your Subaru Forester’s transmission remains in good working order. Regular maintenance is key to avoiding more significant issues down the road.