Best Engine Oil for Subaru Impreza: 7 Best Choices

When I first bought my Subaru Impreza, I knew I was investing in a reliable, fun-to-drive car. But as any Subaru owner will tell you, keeping these beauties running smoothly often comes down to the basics, and nothing is more fundamental than the engine oil. I’ve spent countless hours researching, pouring over owner’s manuals, and yes, even getting my hands greasy in the garage to figure out what truly makes the best engine oil for Subaru Impreza models. It’s not just about the oil itself; it’s about the whole system – the filters, gaskets, and even the cap that keeps it all in. Choosing the right components ensures your Impreza’s engine stays protected, performs efficiently, and lasts for years to come.

IMAGE	PRODUCT NAME	AMAZON LINK
	Subaru Engine Oil Filter & Crush Gasket Kit (1, 2,…	View on Amazon
	Genuine Subaru Forester Outback Impreza Crosstrek Oil…	View on Amazon
	Subaru Synthetic Motor Oil SAE 0W-20 5 Quart Container…	View on Amazon
	Subaru Engine Oil Filter & Crush Gasket KIT 15208AA100 &…	View on Amazon
	Subaru Engine Oil Filter & Crush Gasket Kit for Outback…	View on Amazon
	Engine Oil Filler Cap Replacement For Subaru, 2019-2021…	View on Amazon
	FRAM Ultra Synthetic XG7317 20K Mile Change Automotive…	View on Amazon

In this guide, I’ll walk you through seven top choices that contribute to optimal engine oil performance in your Subaru Impreza. We’ll look at genuine Subaru products, essential filter kits, and even an aftermarket option, all designed to help you make an informed decision for your car’s heart. Let’s dive in!

1. Subaru Engine Oil Filter & Crush Gasket Kit

This genuine Subaru oil filter and crush gasket kit is a non-negotiable for anyone serious about their Impreza’s engine health. Think of it this way: your engine oil is the lifeblood, and the filter is its kidney, constantly cleaning out impurities. Subaru has updated its filter designs over the years, so don’t be surprised if the one you pull out looks different from this new 15208AA21A part number. This kit is designed to capture millions of microscopic pollutants and dust particles, ensuring your engine oil stays cleaner and more effective for longer. It’s a vital component that allows the best engine oil for Subaru Impreza to do its job without compromise.

• Genuine Subaru part numbers: Filter (15208AA21A), Crush Gasket (803916010).
• Updated filter design: Supersedes older part numbers like 15208AA160, 15208AA15A, SOA6351520815, and 15208AA20A.
• Recommended change interval: Every 6 months or 7,500 miles, depending on conditions.

• Broad compatibility: Fits many modern Subaru models including 2012-2025 Impreza (Non-Turbo).

• Pros:

  • Guaranteed OEM fit and quality, maintaining warranty.
  • Superior filtration for engine longevity.
  • Includes a new crush gasket to prevent leaks.
  • Specifically engineered for Subaru engines.
• Cons:
  • May look different from previous filters, potentially causing confusion.
  • Only for non-turbo Impreza models in its range.
• Best for: Owners of newer (2012-2025 non-turbo) Subaru Impreza models who prioritize OEM quality and performance.

User feedback summary: Many users appreciate the peace of mind that comes with using genuine Subaru parts, noting that the filter works exactly as expected and the included crush gasket is a big plus for a complete oil change. The updated part number is sometimes a point of initial confusion but easily resolved.

2. Genuine Subaru Forester Outback Impreza Crosstrek Oil & Filter Kit

Now, this is what I call a comprehensive solution! This kit not only gives you the genuine Subaru oil filter and crush gasket but also includes 6 quarts of genuine Subaru engine oil (SOA427V1310). If you’re like me and prefer the simplicity of a single package for your oil change, this is a fantastic option. Knowing that you’re putting the exact oil and filter combination that Subaru engineered for your engine can really give you confidence. It’s a convenient way to ensure you’re using the best engine oil for Subaru Impreza alongside its matching filter.

• Complete kit: Includes Subaru OEM oil (6 QTS), filter (15208AA21A), and crush gasket (803916010).
• Optimal compatibility: Covers 2012-2023 Impreza (Non-Turbo) among other Subaru models.

• Genuine Subaru components: All items are original equipment manufacturer parts.

• Pros:

  • All-in-one solution for a complete oil change.
  • Guaranteed compatibility and quality across all components.
  • Maintains engine warranty and performance.
  • Convenient to purchase and use.
• Cons:
  • Might have excess oil if your Impreza takes less than 6 quarts (check your manual).
  • Specifically for non-turbo Impreza models.
• Best for: Subaru Impreza (non-turbo) owners looking for the utmost convenience and assurance of using 100% genuine Subaru oil change components.

User feedback summary: Owners love the convenience of getting everything needed for an oil change in one package. They report smooth engine operation after use, appreciating the peace of mind that comes from using OEM fluids and filters designed specifically for their vehicles.

3. Subaru Synthetic Motor Oil SAE 0W-20 5 Quart Container

This is the heart of your oil change – the genuine Subaru Synthetic Motor Oil SAE 0W-20. For most modern Subaru Impreza models, particularly those made from 2017 onwards (non-turbo), 0W-20 is the recommended viscosity. Using the manufacturer’s own brand oil means you’re giving your engine exactly what it was designed to run on. This synthetic formulation provides superior protection across various temperatures, from cold starts to high-speed cruising, helping your engine run efficiently and potentially improve fuel economy. It’s undeniably a strong contender for the title of best engine oil for Subaru Impreza.

• Genuine Subaru brand motor oil: Part number SOA427V1325 (OIL 5 QTS).
• SAE 0W-20 viscosity: Ideal for modern Subaru engines, promoting fuel efficiency and cold start protection.
• Synthetic formula: Offers enhanced engine protection and performance.

• Wide compatibility: Specifically for 2017-2023 Impreza (Non-Turbo) among others.

• Pros:

  • Engineered specifically for Subaru engines, ensuring optimal performance.
  • Excellent cold weather performance and protection.
  • Contributes to better fuel economy.
  • Maintains vehicle warranty.
• Cons:
  • Only the oil, you’ll need to purchase a filter and crush gasket separately.
  • Specific to 0W-20 requirements, not suitable for all Subaru models or generations.
• Best for: Owners of newer Subaru Impreza models (2017+) who prefer using genuine Subaru synthetic oil and want to purchase their filter separately.

User feedback summary: Drivers consistently report that this OEM oil keeps their Impreza engines running smoothly and quietly. Many appreciate the specific formulation for their Subaru, trusting it to provide the best possible lubrication and protection for their valuable engines.

4. Subaru Engine Oil Filter & Crush Gasket KIT 15208AA100 &…

For those of us with classic Impreza models, finding the correct parts can sometimes be a scavenger hunt. Thankfully, Subaru still offers specific kits for older generations. This particular kit, featuring filter part number 15208AA100, is crucial for maintaining the engine health of your 1993-2011 non-turbo Impreza. Just like with newer models, a clean filter is paramount to allowing your chosen engine oil to perform optimally. Don’t compromise your older Subaru’s engine by using the wrong filter; this kit ensures proper fit and filtration for its specific needs.

• Specific for older Subaru models: Fits 1993-2011 Impreza (Non-Turbo).
• Genuine Subaru part numbers: Filter (15208AA100), Crush Gasket (11126AA000).
• Superseded part number: 15208AA100 was formerly SOA6351520812.

• Essential for maintenance: Ensures proper filtration for older engine designs.

• Pros:

  • Correct OEM filter for older Impreza models, ensuring compatibility.
  • Includes the necessary crush gasket.
  • Helps maintain the longevity of classic Subaru engines.
  • Prevents costly engine issues from improper filtration.
• Cons:
  • Specifically for older models, not for newer Imprezas.
  • May require careful cross-referencing for exact year compatibility.
• Best for: Owners of 1993-2011 non-turbo Subaru Impreza models who want to use genuine Subaru parts for their oil changes.

User feedback summary: Owners of older Imprezas are grateful to find the exact OEM filter and gasket they need. They emphasize the importance of using the correct filter for their specific model year to avoid issues and maintain the integrity of their engine oil.

5. Subaru Engine Oil Filter & Crush Gasket Kit for Outback…

Here’s another great OEM filter and crush gasket kit that serves a broad range of modern Subaru vehicles, including the Impreza. This kit includes the 15208AA20A filter and an 803916010 gasket. While some filter part numbers have been superseded (as seen in product #1), having options for specific builds or regional differences is always a good thing. Using a genuine Subaru filter means you’re getting a component designed to exact manufacturer specifications, ensuring reliable performance and protection for your engine’s oil system. It’s a solid choice to ensure the best engine oil for Subaru Impreza stays clean.

• Genuine Subaru parts: Includes 15208AA20A filter and 803916010 gasket.
• Wide modern compatibility: Fits 2012-2024 Impreza (Non-Turbo) and other models.

• OEM quality: Engineered to Subaru’s strict standards for filtration and durability.

• Pros:

  • Guaranteed proper fit and function for compatible Impreza models.
  • Effectively removes contaminants from engine oil.
  • Helps maintain vehicle warranty.
  • Included crush gasket simplifies the oil change process.
• Cons:
  • Filter part number 15208AA20A might be superseded by 15208AA21A in some contexts, requiring verification.
  • Specific to non-turbo Impreza models.
• Best for: Owners of modern (2012-2024 non-turbo) Subaru Impreza models looking for a reliable, genuine Subaru oil filter and gasket solution.

User feedback summary: Users report that this kit works flawlessly for their compatible Subaru models. They appreciate the OEM quality, noting that the filter and gasket fit perfectly, preventing leaks and ensuring smooth oil flow, which are critical for the longevity of their best engine oil for Subaru Impreza.

6. Engine Oil Filler Cap Replacement For Subaru, 2019-2021…

Okay, so this isn’t engine oil or a filter, but hear me out: a faulty engine oil filler cap can completely undermine even the best engine oil for Subaru Impreza. A loose, cracked, or missing cap can lead to oil leaks, allow contaminants into your engine, and even affect your car’s emissions system by allowing unmetered air in. This OEM replacement cap (part number 15255AA161) is a small but mighty component that ensures your engine’s oil system remains sealed and protected. It’s a vital, often overlooked, part of a healthy engine.

• OEM replacement: Part number 15255AA161 ensures exact fit and function.
• High-quality material: Durable and reliable, designed to last.
• Wide compatibility: Fits 2012-2021 Impreza 2.0 non turbo, among other Subaru models.

• Easy to install: Direct replacement, no special tools needed.

• Pros:

  • Prevents oil leaks and contamination, protecting your engine oil.
  • Maintains a proper seal for optimal engine performance.
  • Cost-effective solution for a potentially major problem.
  • Durable construction for long-term reliability.
• Cons:
  • A very specific part, only relevant if your current cap is faulty or missing.
  • Limited to certain model years for compatibility.
• Best for: Subaru Impreza (2012-2021 non-turbo) owners who need to replace a damaged, lost, or worn-out engine oil filler cap to maintain engine integrity.

User feedback summary: Customers who’ve purchased this replacement cap praise its perfect fit and OEM quality. They highlight its importance in preventing oil seepage and maintaining engine cleanliness, often noting that it solved issues they didn’t even realize were due to a faulty cap.

7. FRAM Ultra Synthetic XG7317 20K Mile Change Automotive…

While OEM filters are always a safe bet, sometimes an aftermarket option can offer enhanced features, especially for those using full synthetic oils and looking for extended drain intervals. The FRAM Ultra Synthetic XG7317 is designed to complement high-performance synthetic oils, providing exceptional filtration for up to 20,000 miles. Its dual-layer synthetic media goes above and beyond, capturing more contaminants and protecting your engine for longer. The silicone non-drain back valve is also a great feature, ensuring oil stays in the filter at shutdown for quicker, more protected startups. This filter can help you get the most out of your best engine oil for Subaru Impreza.

• Extended protection: Designed for up to 20,000 miles with synthetic oil.
• Ultimate dual-layer synthetic media: Provides superior filtration efficiency.
• Silicone non-drain back valve: Offers enhanced cold start engine protection.

• SureGrip feature: Textured finish for easier installation and removal.

• Pros:

  • Exceptional filtration for extended oil change intervals.
  • Superior protection for synthetic oils.
  • Improved cold start engine protection.
  • Easy to install with its SureGrip design.
• Cons:
  • Aftermarket, so some purists may prefer OEM for warranty reasons (though generally safe if it meets specs).
  • The 20,000-mile interval might exceed your engine oil’s recommended change, so consult your manual.
• Best for: Subaru Impreza owners who use full synthetic oil, want extended oil change intervals, and are comfortable with a high-quality aftermarket filter.

User feedback summary: Users are consistently impressed with the performance of the FRAM Ultra Synthetic filter, especially its robust construction and the peace of mind offered by its extended mileage rating. Many note that it pairs perfectly with their preferred synthetic engine oils, contributing to cleaner oil and smoother engine operation.

Comparison Insights for Your Impreza’s Engine Oil System

When you’re thinking about the best engine oil for Subaru Impreza, it’s clear that it’s not just about the oil itself, but the entire ecosystem working together. Here’s how these options stack up:

First, let’s talk OEM vs. Aftermarket. The Genuine Subaru Engine Oil Filter & Crush Gasket Kit (#1, #4, #5) and the Subaru Synthetic Motor Oil (#3) represent the gold standard for OEM compatibility. These are parts specifically engineered by Subaru for your Impreza, guaranteeing a perfect fit and performance that maintains your warranty. For newer non-turbo Imprezas (2012-2025), Kit #1 is your most current filter option, while Kit #5 is a slightly older but still widely compatible OEM filter. If you have a classic Impreza (1993-2011 non-turbo), Kit #4 is specifically designed for your model. The biggest benefit here is unquestionable peace of mind and factory-level performance.

Then we have complete solutions. The Genuine Subaru Oil & Filter Kit (#2) stands out because it bundles everything you need – oil, filter, and gasket – into one convenient package. This is ideal if you want to be absolutely sure you have the correct genuine Subaru components for a full oil change without mixing and matching. It’s simplicity and guaranteed compatibility in one go.

For those who are open to high-quality aftermarket options, the FRAM Ultra Synthetic XG7317 (#7) oil filter offers an intriguing alternative. While not OEM, its advanced synthetic media and extended 20,000-mile rating make it a strong contender for those running full synthetic engine oils and looking to potentially extend their filter change intervals (always cross-reference with your oil change interval). It’s a great choice if you prioritize maximum filtration and extended protection from an aftermarket brand known for quality.

And finally, the often-overlooked hero: the Engine Oil Filler Cap (#6). It’s not a performance upgrade, but it’s absolutely critical for maintaining the integrity of your engine oil system. A faulty cap can lead to leaks, contamination, and a compromised engine, rendering even the best engine oil ineffective. Don’t underestimate the importance of a properly sealed oil fill port.

Ultimately, the choice depends on your Impreza’s model year, your budget, and whether you prioritize strict OEM adherence or are willing to consider high-performance aftermarket alternatives. Newer Imprezas generally benefit most from the 0W-20 Subaru Synthetic Oil and matching OEM filters, while older models have specific OEM filter kits tailored to their needs.

Final Verdict: Keeping Your Impreza’s Heart Healthy

Choosing the best engine oil for your Subaru Impreza isn’t a one-size-fits-all decision, but rather about selecting the right blend of oil and supporting components that match your car’s needs and your driving style.

• If you own a newer (2012-2025 non-turbo) Impreza and want the most straightforward, factory-recommended approach, go with the Genuine Subaru Forester Outback Impreza Crosstrek Oil & Filter Kit (#2). It provides everything you need in one box: authentic Subaru 0W-20 synthetic oil, the correct filter, and a fresh crush gasket. This is my top pick for overall convenience and peace of mind for modern Imprezas. If you prefer to buy your oil separately, the Subaru Synthetic Motor Oil SAE 0W-20 5 Quart Container (#3) combined with the Subaru Engine Oil Filter & Crush Gasket Kit (#1) is an equally excellent choice.

• For those with a classic (1993-2011 non-turbo) Subaru Impreza, the Subaru Engine Oil Filter & Crush Gasket KIT 15208AA100 &… (#4) is your essential filter kit. Pair this with the correct viscosity conventional or synthetic oil as recommended in your owner’s manual (often 5W-30 or 5W-40 for older models, check your specific manual carefully!).

• If you’re looking for enhanced filtration and extended service intervals for your modern Impreza, especially if you’re already using a high-quality synthetic oil, the FRAM Ultra Synthetic XG7317 (#7) filter is a solid aftermarket option to consider. Just ensure your oil can handle the extended drain interval.

• And don’t forget the small but mighty details: if you’re experiencing oil leaks or have a damaged cap, replacing it with the Engine Oil Filler Cap Replacement (#6) is a crucial, cost-effective fix that supports the overall health of your engine and the effectiveness of your engine oil.

No matter which path you choose, staying on top of your oil changes with the right parts is the best investment you can make for your Subaru Impreza’s longevity and performance. Your Impreza will thank you with many more miles of reliable, spirited driving!

Comprehensive FAQ Section

Q1: Why is choosing the right engine oil so important for my Subaru Impreza?
A1: Your engine oil is the lifeblood of your Subaru Impreza. It lubricates moving parts, reduces friction, cools the engine, cleans out contaminants, and protects against corrosion. Using the best engine oil for Subaru Impreza ensures your engine performs efficiently, maximizes fuel economy, and significantly extends its lifespan. Using the wrong type or low-quality oil can lead to premature wear, engine damage, and costly repairs.

Q2: What viscosity engine oil does my Subaru Impreza need?
A2: Most modern (post-2011) Subaru Impreza models, particularly those with the FB engine (2.0L and 2.5L non-turbo), require SAE 0W-20 full synthetic motor oil. Older models (pre-2011) might require 5W-30 or 5W-40. Always check your Impreza’s owner’s manual for the exact recommended viscosity and oil type, as it can vary by model year and engine type (e.g., turbo vs. non-turbo).

Q3: How often should I change the engine oil and filter in my Subaru Impreza?
A3: Subaru generally recommends changing your engine oil and filter every 6 months or 6,000 to 7,500 miles, whichever comes first. However, driving conditions (e.g., heavy city driving, extreme temperatures, towing) can sometimes necessitate more frequent changes. Refer to your owner’s manual for the specific maintenance schedule for your Subaru Impreza model.

Q4: Should I use genuine Subaru oil filters or are aftermarket filters okay for my Impreza?
A4: Genuine Subaru oil filters (like those in kits #1, #4, #5) are designed to precise specifications for your engine, offering guaranteed fit, filtration efficiency, and maintaining your warranty. Many reputable aftermarket filters, like the FRAM Ultra Synthetic (#7), also offer excellent performance and can be a good option, especially if they meet or exceed OEM specifications. If choosing aftermarket, ensure it’s from a trusted brand and designed for your specific Subaru Impreza model.

Q5: What are the benefits of using synthetic engine oil in my Subaru Impreza?
A5: Synthetic engine oil, like the Subaru Synthetic Motor Oil SAE 0W-20 (#3), offers several advantages over conventional oil. It provides superior lubrication and wear protection, especially during cold starts and under high-temperature conditions. Synthetic oil also maintains its viscosity better, resists breakdown, and often allows for longer oil change intervals. For modern Subaru Impreza engines, synthetic oil is often required.

Q6: What role does the crush gasket play in an oil change for my Subaru Impreza?
A6: The crush gasket (or washer) is a small, soft metal ring that sits between the drain plug and the oil pan. It creates a tight, leak-proof seal when the drain plug is tightened. It’s designed to be crushed once, so it’s crucial to replace it with a new one every time you change your Subaru Impreza’s engine oil. Reusing an old gasket can lead to oil leaks, which can be messy and damaging to your engine.

Q7: Can a faulty oil filler cap affect the performance of the best engine oil for my Subaru Impreza?
A7: Absolutely! A faulty, cracked, or missing engine oil filler cap (like product #6) can compromise the entire engine oil system. It allows dirt and moisture to enter the engine, contaminating the oil and reducing its effectiveness. It can also lead to oil leaks, which result in lower oil levels, insufficient lubrication, and potential engine damage. A secure, properly functioning oil filler cap is essential for maintaining the integrity and performance of your best engine oil for Subaru Impreza.