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If you own a 2008–2011 Subaru Impreza, picking the right oil filter is a simple way to protect the engine and keep performance steady between services. The wrong filter can cause poor filtration, leaks, or fitment headaches during routine maintenance. This guide shortlists the top oil filters that fit the 2008–2011 Impreza and explains the practical reasons those options make sense for everyday driving and longer service intervals.Below you will find the top picks for this specific year range, plus the evaluation criteria we used and what to watch for when you change the oil filter yourself or have a technician do the job.
Looking for other parts? See all Subaru Impreza parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Subaru 15208AA160 Oil Filter (1 Pack) |  |
| Best Quality Built to a higher standard if you want something more solid | Subaru Engine Oil Filter and Crush Gasket Kit 15208AA100 & 11126AA000 |  |
| Best Value The sweet spot between price and what you get | Bosch 3974 Premium Oil Filter with FILTECH Media |  |
| Best Budget The cheapest option that still gets the job done reliably | Kefly 15208AA100 Replacement Oil Filter (1 pc) |  |
| Highest Rated A top-rated pick with lots of positive feedback | Mobil 1 M1-108A Extended Performance Oil Filter |  |
| Most Popular A crowd favorite that many people choose with confidence | K&N Premium Oil Filter with Wrench-Off Nut, HP-1008 |  |
1. Subaru 15208AA160 Oil Filter (1 Pack)
| Manufacturer Part Number | 15208AA160 |
|---|---|
| Unit Count | 1 Count |
| Material Type | Metal, Paper |
| Compatible with Vehicle Type | Car, Sports Utility Vehicle |
This Subaru 15208AA160 oil filter is a straightforward factory-quality replacement intended for regular oil changes. It installs like a standard spin-on filter and uses metal and paper construction to capture contaminants while maintaining oil flow. Typical use is routine maintenance at regular service intervals; it performs the basic job of protecting the engine by trapping debris and particulates between changes. Notable features include vehicle-specific fitment and an OEM-equivalent part number, which reduces the risk of fit or sealing issues compared with generic filters. Practical benefits are reliable compatibility and predictable performance when paired with recommended oil and service intervals. Limitations are minimal for a stock replacement: it does not advertise extended-life media or synthetic-specific filtration enhancements, so drivers seeking longer drain intervals or higher-efficiency aftermarket filtration should consider specialized options instead.
Best for: Drivers who want a reliable, factory-style replacement for routine oil changes on their Subaru and prioritize correct fit and predictable performance over specialty filtration.
Less Ideal for: Those who plan extended oil change intervals or want higher-efficiency aftermarket filtration for heavy-duty or motorsport use should look at premium filter options.
- Factory-equivalent design ensures correct fit and reliable sealing
- Simple spin-on installation suitable for home or shop oil changes
- Metal canister construction offers durable housing
- Sold as a single-unit replacement matching Subaru part numbering
- No claimed extended-life or high-efficiency filtration media compared with premium aftermarket filters
Verdict: Choose this Subaru replacement oil filter if you want a dependable, factory-quality swap for routine maintenance on your Impreza.
2. Subaru Engine Oil Filter and Crush Gasket Kit 15208AA100 & 11126AA000
| Manufacturer Part Number | 15208AA100 |
|---|---|
| Included Components | Engine Oil Filter & Gasket Kit |
| Thread Size | 17mm x 1.5mm |
| Product Grade | Replacement Part |
This Subaru oil filter and crush gasket kit is a factory-grade replacement designed for direct fitment to many Subaru engines, including non-turbo Impreza models in the covered years. It includes the engine oil filter element and the crush gasket for the oil drain, which makes it convenient for a routine oil change without hunting separate parts. The metal construction and OEM-equivalent part numbering suggest a build quality and sealing fit consistent with factory maintenance intervals. Fitment is vehicle-specific so installation is straightforward for DIYers or technicians familiar with Subaru drain and filter locations. The kit does not claim enhanced filtration media or extended service life over standard Subaru filters, so drivers seeking improved particle capture or performance-oriented filter upgrades should look at high-performance aftermarket options instead. For routine maintenance on a 2008 to 2011 Impreza this kit simplifies parts matching and helps maintain factory service standards.
Best for: Buyers who prioritize maintaining factory-spec parts and want a straightforward, vehicle-matched replacement for routine oil changes on their Impreza.
Less Ideal for: Drivers looking for aftermarket performance or motorsport-grade filtration with higher flow rates or extended service intervals should consider specialized performance filters instead.
- Includes both oil filter and crush gasket for a complete oil change service
- Factory-equivalent part number and vehicle-specific fit reduce fitment errors
- Metal construction consistent with OEM-style filter housings
- Simplifies DIY maintenance by matching Subaru factory replacement parts
- Not marketed as a high-flow or high-efficiency performance filter for increased protection
- Limited to vehicle-specific fitment and not interchangeable across different applications
Verdict: Choose this Subaru kit to keep your 2008–2011 Impreza on factory-spec maintenance with a correctly matched oil filter and crush gasket.
3. Bosch 3974 Premium Oil Filter with FILTECH Media
| Model | 3974 |
|---|---|
| Material | Silicone (valve/gasket) |
| Product Grade | Performance Part |
| OEM Part Number | F00E164423 |
The Bosch 3974 is a vehicle-specific replacement oil filter designed to capture and hold a large amount of debris so cleaner oil circulates through the engine. It uses Bosch FILTECH media that the company says retains up to 14 grams of dirt, a spiral-wound center tube for internal strength, and a silicone anti-drain back valve to keep oil in the engine during shutdown. Install and routine service are straightforward because the high-lubricity gasket seals tightly yet comes off without excessive force. The steel base plate and robust housing reduce the risk of warpage or leaks compared with lighter stamped cans. For a practical optimizer focused on reliable protection and easy maintenance, this filter gives solid filtration performance without special tools. Keep in mind fitment is vehicle-specific so confirm it matches a 2008–2011 Subaru Impreza application before purchasing, and performance gains are about durability and protection rather than increased horsepower or fuel economy.
Best for: Buyers who prioritize solid engine protection and straightforward, maintenance-friendly parts for regular service intervals on their Impreza.
Less Ideal for: Shoppers looking for performance parts that boost power or fuel economy should consider other engine upgrades rather than a different filter.
- FILTECH media captures and holds a high amount of dirt to reduce contaminant recirculation
- Silicone anti-drain back valve preserves oil in the engine at shutdown to improve startup lubrication
- Reinforced spiral-wound center tube and steel base plate resist warpage and leaks
- High-lubricity gasket provides a tight seal while allowing easier removal during oil changes
- Fitment is vehicle-specific so must be verified for the exact Impreza trim and engine
Verdict: Choose the Bosch 3974 if you want a durable, high-filtration replacement filter that prioritizes engine protection and easy oil-change service for a 2008–2011 Subaru Impreza.
4. Kefly 15208AA100 Replacement Oil Filter (1 pc)
| Manufacturer Part Number | 15208AA100 |
|---|---|
| Thread Size | M16 x 1.5 |
| Compatible with Vehicle Type | Car |
| Automotive Fit Type | Vehicle Specific Fit |
| Material Type | Cellulose, Glass Fibers, or Synthetic Fibers |
This Kefly 15208AA100 oil filter is a straightforward replacement designed to fit a range of Subaru engines, including 2008–2011 Impreza applications listed for non-turbo and some turbo variants. It installs like a standard spin-on filter and uses a media blend of cellulose, glass, or synthetic fibers to trap contaminants and hold debris between oil changes. The listing highlights cross-reference OEM numbers, an M16 x 1.5 thread, and claims of good sealing and high dirt-holding capacity, which makes it suitable for routine maintenance intervals. For budget-focused buyers it provides an economical way to keep the engine protected without buying a premium-brand filter. Limitations to note are typical of lower-cost aftermarket filters: construction and long-term durability may not match higher-end or manufacturer-branded filters, and filtration media composition is generalized rather than specified in micron ratings. If you run extended drain intervals or high-performance tuning, consider a filter with documented efficiency ratings.
Best for: A buyer looking to maintain a 2008–2011 Subaru Impreza on a tight budget who prioritizes correct fit and routine oil change protection over premium filtration specs.
Less Ideal for: Not recommended for owners who run extended oil change intervals, heavy-duty use, or who require documented high-efficiency filtration for modified engines.
- Direct replacement for several Subaru OEM part numbers for straightforward fitment
- Threads and fitment specified (M16 x 1.5) for easy installation
- Claims high filtration efficiency and large dirt-holding capacity
- Single-count packaging makes it convenient for individual oil changes
- Manufacturer does not list specific micron ratings or verified filtration efficiency data
- Build quality and longevity may vary compared with higher-end or factory-brand filters
Verdict: A budget-friendly, vehicle-specific replacement that gives correct fit and basic filtration for routine 2008–2011 Subaru Impreza maintenance.
5. Mobil 1 M1-108A Extended Performance Oil Filter
| Material | fiber |
|---|---|
| Product Grade | Performance Part |
| Vehicle Service Type | Truck |
| Model | Mobil 1 M1-108A Extended Performance Oil Filter |
| Manufacturer | Mobil 1 |
The Mobil 1 M1-108A Extended Performance Oil Filter is built to trap more contaminants than a conventional filter while minimizing flow resistance, which helps maintain oil circulation and engine protection. It uses synthetic fibers and a high-efficiency media that can withstand elevated system pressures, and when paired with long-life Mobil 1 motor oil it is marketed for extended drain intervals. For a 2008–2011 Subaru Impreza this filter offers stronger contaminant capture and durability compared with many basic replacements, making it a sensible choice for drivers who prioritize steady protection between services. Installation is the same as a standard spin-on filter so routine oil changes are unchanged, though relying on extended intervals means following oil manufacturer guidance and monitoring engine condition. The main trade-off is that extended-life servicing depends on oil type and driving conditions, so conservative owners who prefer shorter, frequent changes may not use its full lifespan benefits.
Best for: Drivers who prioritize long-term engine protection and want a filter that supports extended drain intervals when paired with long-life synthetic oil.
Less Ideal for: Drivers who prefer fixed short-interval oil change schedules or who do mostly severe stop-and-go driving and want the reassurance of more frequent service.
- High-efficiency synthetic fiber media captures more contaminants than conventional filters.
- Designed to reduce flow resistance for reliable oil circulation.
- Construction rated to withstand high system pressures for durability.
- Compatible with standard spin-on installation for simple replacement.
- Extended service claims depend on using compatible long-life oil and ideal driving conditions, not guaranteed for all users.
Verdict: Choose this filter if you want a higher-efficiency, durable replacement that supports extended oil-change intervals for a 2008–2011 Subaru Impreza when used with long-life synthetic oil.
6. K&N Premium Oil Filter with Wrench-Off Nut, HP-1008
| Thread Size | M20 X 1.5 |
|---|---|
| Material | steel |
| Product Grade | Performance Part |
| Manufacturer Part Number | HP-1008 |
The K&N HP-1008 is a spin-on oil filter built for durability and higher flow rates, designed to handle extended service intervals many modern engines require. It uses pleated synthetic-blend filtration media to capture contaminants while allowing steady oil flow, and the steel canister and welded one-inch hex nut make removal straightforward when changing the filter. This filter is laboratory tested for capacity and burst strength and is specified to work with synthetic, conventional, and blended oils. For routine maintenance on a 2008-2011 Subaru Impreza, the HP-1008 can simplify swaps and provide robust construction that stands up to frequent driving and harsher conditions. The practical limitations are that fitment must be verified for your specific Impreza engine and oil filter housing, and the extended 20,000-mile service claim depends on driving conditions and following oil manufacturer guidance rather than being an absolute interval to follow.
Best for: Buyers who prioritize proven construction and clear user feedback and who want an oil filter that is easy to remove and performs well with synthetic oils during regular maintenance.
Less Ideal for: Drivers who prefer strictly manufacturer-recommended short service intervals or those unwilling to verify exact fitment for their Impreza model and engine.
- High flow design supports steady oil delivery under load
- Pleated synthetic-blend media captures contaminants while maintaining capacity
- Heavy-duty steel canister with welded hex nut for easier removal
- Compatible with synthetic, conventional, and blended motor oils
- Extended 20,000-mile service recommendation depends on driving conditions and oil used
- Must confirm engine-specific fitment for 2008-2011 Subaru Impreza before purchase
Verdict: A robust, easy-to-remove oil filter that suits owners looking for durable, high-flow filtration compatible with synthetic oil for routine service on their 2008–2011 Impreza when fitment is confirmed.
Choosing the Right 2008-2011 Subaru Impreza Oil Filter: Key Factors to Consider
Fitment and Thread/Gasket Compatibility
Correct fitment is the top priority for the 2008–2011 Subaru Impreza because an ill-fitting filter can cause leaks or cross-threading at the oil filter mount. Confirming the thread pitch, overall canister height, and gasket outer diameter prevents sealing failures and ensures the filter seats properly when tightened.
Many service issues stem from using the wrong physical size even if filtration media is adequate. For this Impreza range you should verify the filter matches the engine block mount and that the gasket material compresses consistently to avoid oil seepage during warm-up and cool-down cycles.
Filtration Efficiency and Media Type
Filtration efficiency determines how well the filter traps particles that accelerate engine wear. Look for stated micron ratings and percent-efficiency figures to understand particle capture performance, especially for smaller contaminants under 30 microns that can cause bearing or cam wear.
Media type matters: synthetic blended media typically offers higher capacity and more consistent pore size than basic cellulose. For owners using synthetic oil or planning longer drain intervals, a higher-capacity media helps maintain protection over the entire interval.
Structural Durability and Anti-Drainback Features
Structural integrity prevents collapse or bypass under oil pressure, and anti-drainback valves stop oil from draining out of the filter when the engine is off. On the 2008–2011 Impreza, a robust canister or reinforced cartridge reduces the risk of internal bypass during high-temperature operation or cold starts.
Anti-drainback valves are particularly helpful if the filter mount is oriented so oil can flow out when parked. Durable end caps and a stable center tube also matter for withstanding the pressure pulses in Subaru engines.
Gasket Material and Seal Reliability
Gasket material affects long-term sealing performance and resistance to heat and oil additives. Filters using high-quality nitrile, silicone, or fluoroelastomer gaskets maintain a reliable seal across temperature swings typical of Subaru engine bays.
Avoid filters with thin or easily deformed gaskets to reduce the chance of oil filter gasket leaks after installation. Proper gasket seating and consistent material compression are essential for repeated filter changes over a vehicle's life.
Compatibility With Oil Type and Drain Interval
If you use synthetic oil or extend oil-change intervals, select filters rated for longer service life and compatible with the oil chemistry. Some filter media and adhesives respond differently to synthetic blends, which can affect efficiency and structural stability over time.
Choosing a filter designed for extended intervals reduces the risk of performance degradation before the next scheduled change and helps preserve engine cleanliness for owners who perform fewer oil changes.
Serviceability and Ease of Installation
Practical installation features save time and reduce the chance of mistakes during a DIY oil change. Consider whether the filter is a standard spin-on style or a cartridge type, how accessible the gasket is, and whether a common filter wrench fits cleanly.
Ease of removal matters in tight engine bays. Filters that are easy to grip and that do not require special tools or bodywork removal make routine maintenance simpler for Impreza owners and reduce time in the shop.
Understanding Spin-On Versus Cartridge Designs
Oil filters for the 2008–2011 Subaru Impreza come in two common formats. Spin-on filters are self-contained metal canisters that screw onto the engine mount, while cartridge systems use a replaceable filter element inside a permanent housing. Each design affects cost of ownership and how you perform maintenance.
Spin-on units are typically straightforward to replace and require only an appropriate wrench and new gasket seating. Cartridge elements can reduce waste and sometimes allow for easier inspection of the housing, but may require removing the housing cover and a different set of service steps.
- Spin-on: simple replacement, minimal tools, full filter disposed at service
- Cartridge: replaceable element, may reduce waste, requires housing access
How Filter Choice Affects Oil Pressure and Flow
A filter with overly restrictive media can raise oil pressure and potentially trigger bypassing or pressure-related wear. Conversely, a filter with insufficient media or damaged internal support can allow contaminants through. For the 2008–2011 Impreza, choose filters that balance sufficient flow at cold start with effective particle capture throughout operating temperature ranges.
Check the manufacturer specifications for flow rates and bypass valve opening pressures if available. Filters designed for passenger cars aim to maintain normal oil pressure without starve or overpressure events during normal driving.
- Look for filters with appropriate bypass valve settings for passenger engines
- Ensure media provides low resistance at cold start to maintain lubrication
Common Installation Mistakes and How to Avoid Them
Cross-threading, overtightening, and failing to lubricate the gasket are common causes of leaks or damage. Before installation, clean the mounting surface and remove old gasket remnants to ensure a smooth seating surface. Lightly oil the new gasket so it compresses evenly and avoids sticking or tearing during installation.
Tighten to the torque or hand-tight specification where possible. Over-tightening can damage threads or crush the gasket, while under-tightening may lead to leaks. After installation, start the engine and check for leaks at ambient temperature and after a short drive.
- Clean mounting surface and remove old gasket residue
- Lubricate gasket before installation
- Tighten to recommended hand or torque spec and verify no leaks
Signs of Oil Filter Gasket Leak or Failure
Early signs of a gasket leak include fresh oil spots under the vehicle shortly after an oil change, low oil level warnings, or a smell of burning oil. If you suspect a leak, inspect the filter area for seepage around the gasket and ensure the filter is properly seated and tightened.
Severe failures can cause significant oil loss and engine damage. Address any leak immediately and avoid driving the vehicle long distances until the source is corrected.
- Visible oil around the filter or on the underside of the engine
- Drop in oil level between checks
- Oil smell after short drives indicating seepage onto hot components
Oil Filter Maintenance Interval Recommendations
Typical intervals for the 2008–2011 Subaru Impreza depend on oil type and driving conditions. Conventional oil often calls for shorter intervals, while quality synthetic oils permit longer stretches. Match the filter life to the oil change interval by selecting filters rated for your chosen drain schedule.
For severe driving conditions such as frequent short trips, towing, or dusty environments, shorten the interval and use a filter with strong particulate capacity. For primarily highway driving with synthetic oil, using a higher-capacity filter can be appropriate for extended intervals.
- Short trips and severe conditions: shorter oil and filter intervals
- Highway driving with synthetic oil: filters rated for extended intervals may be suitable
Still looking for the perfect fit?
Select your Subaru Impreza configuration to see the most relevant Oil Filters recommendations
How We Chose the Best 2008-2011 Subaru Impreza Oil Filter
We evaluated candidate oil filters for the 2008–2011 Subaru Impreza using criteria that matter for owners and technicians working on this model. Primary filters had to reliably match OEM thread size and gasket dimensions to avoid fitment issues and seal leaks. Filtration performance was assessed from manufacturer-stated micron ratings, media type, and efficiency claims to ensure contaminants are trapped before circulating through the engine. Durability factors included structural reinforcement of the canister or cartridge support, anti-drainback valves, and gasket materials suited to typical engine bay temperatures.We also weighed serviceability: ease of installation and removal, availability in common retail channels, and whether the design supports standard DIY tools. Compatibility with synthetic oils and extended drain intervals was considered, given many owners use longer-life lubricants. Filters that lacked clear fitment information, used unproven media, or had known sealing risk were excluded. The final list balances filtration efficiency, fitment confidence, and practical durability specific to the 2008–2011 Subaru Impreza.
Our full evaluation process is outlined in our review methodology.
FAQ
How often should I replace the oil filter on a 2008–2011 Subaru Impreza?
It depends on oil type and driving conditions. For standard oil and mixed driving, match the filter to each oil change. If you use synthetic oil and drive primarily on highways, you can often extend the interval but should use a filter rated for longer service life.
Can I use a high-capacity synthetic oil filter with synthetic oil?
Yes, many high-capacity filters are compatible with synthetic oil and are designed to retain efficiency over longer intervals. Confirm the filter manufacturer states compatibility with synthetic lubricants and is rated for the expected drain interval.
What causes oil filter gasket leak after installation?
Common causes include improper gasket seating, leftover old gasket material on the mounting surface, cross-threading, or overtightening. Ensure the surface is clean, lubricate the new gasket lightly, and tighten to the recommended specification.
Will changing filter type affect oil pressure in my Impreza?
A significantly more restrictive filter can raise oil pressure, while a damaged or undersized filter may lower effective protection. Choose a filter designed for passenger engines that maintains good flow at cold start without excessive restriction.
Is a spin-on filter easier for DIY oil filter replacement?
Spin-on filters are generally simpler for DIY jobs because the entire unit is replaced and common wrenches handle removal. Cartridge systems may require removing the housing and are slightly more involved but can reduce waste.
How can I check that a new filter is sealing correctly?
After installation, run the engine for a few minutes, then inspect the filter area for leaks at the gasket. Recheck after a short drive and ensure oil level is within the correct range on the dipstick.
Final Verdict
Prioritize correct fitment and reliable filtration when selecting an oil filter for the 2008–2011 Subaru Impreza. Matching thread and gasket dimensions prevents leaks, while higher-efficiency media and durable construction protect the engine over the chosen oil-change interval. Balance your choice between ease of service and compatibility with your oil type.Decide based on how you drive and the maintenance schedule you prefer: pick a filter rated for extended intervals if you use synthetic oil and longer drains, or choose a robust, easy-to-install option if you perform frequent, shorter-interval changes. That approach will keep the Impreza running cleanly and minimize the risk of filter-related issues.
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