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If you drive a Mitsubishi Eclipse and want to reduce oil vapor and sludge entering the intake and intake ports, a dedicated oil catch can is a practical add-on. Choosing the right catch can matters because fitment, filtration design, and overflow capacity determine how effectively blow-by is captured and how often you need to service it. This guide shortlists the top seven oil catch cans for the Mitsubishi Eclipse based on criteria that matter to owners. We evaluated filtration approach, mounting and hose routing, and maintenance demands to assemble a concise set of options. Read on to see the features that should shape your choice and to find the right fit for your driving habits.
Looking for other parts? See all Mitsubishi Eclipse parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | EVIL ENERGY 300ml Baffled Oil Catch Can Kit with NBR Hose |  |
| Most Popular A crowd favorite that many people choose with confidence | RULLINE 350ml Universal Baffled Oil Catch Can (0046) |  |
| Best Quality Built to a higher standard if you want something more solid | POSENG 1L Baffled Aluminum Oil Catch Can with Filter (10AN) |  |
| Best Budget The cheapest option that still gets the job done reliably | ZNDAW 2-Port Billet Aluminum Oil Catch Can Kit with Breather Filter and Drain Valve |  |
| Most Sold A high-volume bestseller chosen again and again | RANSOTO Billet Oil Catch Can for 5.7L and 6.4L HEMI (Z-Bracket) |  |
| Best Value for Money The sweet spot between price and what you get | WENJTP 150ml Universal Baffled 3-Port Oil Catch Can with Breather Filter and Drain Valve |  |
| Best Overall The best all-around choice for most situations | EVIL ENERGY Aluminum Oil Catch Can with Quick-Connect Fittings (3 oz) |  |
1. EVIL ENERGY 300ml Baffled Oil Catch Can Kit with NBR Hose
| Capacity | 300 Milliliters |
|---|---|
| Fit Type | Universal |
| Hose length | 2.6ft (0.8m) |
| Hose ID/OD | 3/8" ID, 2/3" OD |
| Port thread | M16 x 1.5 |
This EVIL ENERGY catch can is a compact, baffled separator intended to trap oil and moisture before they re-enter the intake via the PCV system. It installs inline between PCV hoses or as a vent for pre-PCV setups and includes a removable baffle plus steel wool for improved coalescing. The kit ships with an aluminum can, NBR fuel hose, threaded ports and basic mounting hardware so you can position it in the engine bay. For a Mitsubishi Eclipse the 300ml capacity and small footprint make routing and mounting feasible in tight spaces while the included hose and M16*1.5 threaded fittings simplify connection to common PCV nipples. Practical benefits include reduced intake valve and throttle-body gunk and easier maintenance thanks to the removable bottom for draining. Important limitations are that the bracket and hose length are universal rather than vehicle-specific so you may need to trim or extend hose and modify the bracket for a clean fit, and the O-rings and supplied clamps can be fiddly during install. In cold climates the vendor warns about moisture freezing and recommends more frequent cleaning.
Best for: Reliability-focused buyers who prioritize protecting the engine internals of a Mitsubishi Eclipse and want a practical, maintainable solution to reduce intake contamination.
Less Ideal for: Buyers seeking a plug-and-play, vehicle-specific kit with pre-shaped brackets and exact-length hoses should consider Eclipse-specific solutions instead.
- Baffled internal design with removable baffle and steel wool improves oil and moisture separation.
- Compact 300ml aluminum can is small enough to fit typical Eclipse engine bays.
- Includes NBR hose and threaded fittings for secure connections to PCV lines.
- Bottom drain and removable internals make inspection and cleaning straightforward.
- Universal bracket and hose may require trimming, extra hose, or bracket modification for a neat Eclipse-specific fit.
- Supplied O-rings and a limited number of hose clamps can be difficult to work with during installation.
- Manufacturer notes higher freeze risk from moisture buildup in very cold conditions, requiring more frequent maintenance.
Verdict A well-made, compact baffled catch can that reliably reduces PCV oil recirculation for a Mitsubishi Eclipse but may need hose or bracket tweaks for a tidy installation.
2. RULLINE 350ml Universal Baffled Oil Catch Can (0046)
| Capacity | 350 Milliliters |
|---|---|
| Fuel Type | Gasoline |
| Product Grade | Performance Part |
| Fit Type | Universal |
This RULLINE catch can captures oil and moisture from the PCV/CCV system and stores contaminants in a baffled 350ml reservoir to help keep the intake and throttle body cleaner. It is typically mounted in-line between the crankcase ventilation outlet and the intake, using the included fittings and braided hose; RULLINE supplies three adapter sizes so you can match common hose connections. Notable features include a tig-welded aluminum body with anodized finish, an O-ring sealed screw cup and a dipstick for quick fluid checks without disassembly. In practice the can is compact and serviceable, and the braided hose is a solid upgrade over thin rubber lines. Limitations include its universal mounting bracket which often requires modification for a clean installation and the need to confirm hose diameters on the Eclipse since the included hose may not match factory ports exactly. Buyers should also plan periodic draining and occasional re-sealing of fittings to maintain a leak-free installation.
Best for: Convenience-driven buyers who want a compact, easy-to-service catch can to reduce carbon and intake contamination without complex fabrication.
Less Ideal for: Drivers who prefer a vehicle-specific, bolt-on kit with exact-fit mounting hardware and hoses should consider model-specific options instead.
- Baffled 350ml reservoir reduces oil and moisture reaching the intake system
- Tig-welded anodized aluminum body resists corrosion and looks factory-quality
- Includes three adapter fittings and a braided hose to fit a range of setups
- O-ring sealed screw cup and dipstick make level checks and service easier
- Universal bracket may need modification for secure mounting in some engine bays
- Included hose diameter may not match factory PCV or intake ports on all vehicles
Verdict A compact, serviceable universal catch can that works well for convenience-focused installers but may need minor hose and bracket adjustments for a perfect fit on the Mitsubishi Eclipse.
3. POSENG 1L Baffled Aluminum Oil Catch Can with Filter (10AN)
| Fit Type | Universal |
|---|---|
| Manufacturer | POSENG |
| Fuel Type | Gasoline |
| Manufacturer Part Number | OCC-1001-1-BK-CS |
| Capacity | 1L |
This POSENG baffled oil catch can is a simple, robust solution for capturing crankcase oil vapors before they reach the intake. It installs inline on the PCV/venting circuit and uses internal baffles plus a breather filter to condense and collect oil for periodic draining through the bottom valve. The 1 liter aluminum body and TIG welding give it a durable, heat-resistant shell that stands up to engine bay conditions, and the 10AN inlet/outlet fittings handle higher flow setups. For a performance-oriented Mitsubishi Eclipse, the can helps reduce intake carbon and keeps charge piping and intercoolers cleaner on turbo or high-boost builds. It is easy to service thanks to the drain valve and removable filter, but the unit is a universal design so you may need custom hoses, mounts, or adapters to fit tight Eclipse engine bays and some users report the baffling geometry limits fit for dual 10AN lines at the top. If you want a factory-quality-feeling aftermarket catch can that handles aggressive use, this is a solid choice provided you plan for a bit of installation customization.
Best for: Performance-oriented owners who prioritize reducing intake carbon and protecting turbo/intercooler systems on modified Mitsubishi Eclipse models, and who are comfortable fitting a universal aftermarket part.
Less Ideal for: Buyers seeking a bolt-on, vehicle-specific kit with no modification or those with extremely limited engine bay space should consider purpose-made Eclipse catch cans instead.
- Baffled internal design improves oil separation versus simple chambers
- T-6061 aluminum construction with TIG welds for durability in high temperatures
- 1 liter capacity reduces frequency of drains for performance engines
- 10AN inlet/outlet fittings support higher flow and turbo applications
- Bottom drain valve and removable filter make cleaning straightforward
- Universal sizing requires custom mounting or hose routing for tight engine bays
- May be too large for cramped installations and can interfere with nearby components
- Top baffling may not accept two full-size 10AN fittings side-by-side
Verdict A sturdy, performance-minded universal catch can that effectively traps oil vapors for modified Mitsubishi Eclipse engines but requires planning for fitment and mounting.
4. ZNDAW 2-Port Billet Aluminum Oil Catch Can Kit with Breather Filter and Drain Valve
| Capacity | 5 Fluid Ounces (150 ml) |
|---|---|
| Material | Aluminum |
| Ports | 2-Port |
| Fit Type | Universal |
This ZNDAW oil catch can catches blow-by oil and moisture before they reach the intake, helping reduce carbon and sludge buildup in the engine. It is a compact, baffled 2-port reservoir made from aluminum and intended for inline installation between the PCV/valve cover and intake. The kit includes a breather filter, a bottom drain valve for easy emptying, five adapters and O-rings to match common hose diameters, a hose clamp and mounting screws so it can be fitted without fabricating fittings. For everyday driving on a Mitsubishi Eclipse the can will collect oil vapor and keep intake plumbing cleaner, making it a practical preventive maintenance upgrade on higher-mileage engines. Limitations include the small 150 ml capacity which means more frequent checks on engines that produce heavier oil blow-by, and the universal fit approach may require careful routing and a secure clamp to maintain vacuum integrity on the Eclipse. Build quality appears solid for a budget unit thanks to aluminum construction but it lacks vehicle-specific brackets or instructions.
Best for: Budget-conscious Mitsubishi Eclipse owners looking for an affordable preventive maintenance upgrade to reduce intake contamination and extend engine life.
Less Ideal for: Owners seeking a large-capacity, track-focused solution or a plug-and-play catch can with model-specific mounting hardware should consider higher-end, vehicle-specific units instead.
- Billet aluminum construction resists corrosion and handles heat better than plastic alternatives
- Includes breather filter and drain valve for convenient draining without disassembly
- Multiple adapters and O-rings simplify plumbing to common hose sizes
- Compact 150 ml capacity fits tight engine bays without much packaging required
- Small 150 ml reservoir means more frequent draining on engines with high blow-by
- No vehicle-specific bracket or step-by-step instructions for Mitsubishi Eclipse installation
Verdict A solid low-cost, compact catch can for Mitsubishi Eclipse drivers who want basic oil separation and easy draining but are willing to monitor the small reservoir more often.
5. RANSOTO Billet Oil Catch Can for 5.7L and 6.4L HEMI (Z-Bracket)
| Compatible with | 2011+ Chrysler 300, 2011+ Dodge Charger, 2011-2021 Dodge Challenger, 2011-2021 Jeep Grand Cherokee |
|---|---|
| Material | T6061 billet aluminum |
| Mounting | Z-style bracket |
| Drain | Knurled bottom plug for tool-free draining |
This RANSOTO catch can is a compact, bolt-on separator designed to capture oil vapor and moisture before they reach the intake, helping reduce carbon buildup on intake valves. It mounts with a Z-style bracket and includes hoses, clamps, and hardware for installation. The CNC-machined billet body and polished finish give a durable, engine-bay quality feel and the knurled bottom plug makes draining straightforward without tools. In practice the unit performs the basic job well on compatible HEMI engines and reviewers report noticeable residue collected in the can. Expect some installation fiddling though: the supplied hoses and fittings may need clamps or minor adjustments and the bracket hardware can be a tight fit in some engine bays. A few users needed different bolts or small routing changes for clearance. There are reports of fitment issues on some SRT variants, so double-check compatibility before fitting. For risk-averse buyers this is a practical protective add-on but not a perfect drop-in kit for every HEMI configuration.
Best for: A risk-averse mainstream buyer seeking added engine protection and reduced intake carbon buildup without major modification, prioritizing a straightforward, serviceable solution.
Less Ideal for: Enthusiasts needing a guaranteed fit for modified engines or owners of vehicles outside the listed 5.7L/6.4L HEMI fitment should look for application-specific kits or model-targeted options.
- CNC-machined billet aluminum body for durability and a clean engine-bay appearance
- Z-bracket mounting gives a convenient, serviceable location for draining
- Knurled, tool-free drain plug simplifies periodic maintenance
- Includes hoses, clamps, and mounting hardware for a mostly bolt-on installation
- Supplied hoses and fittings may require additional clamps or slight trimming to fit correctly
- Some models and SRT variants report fitment or clearance problems
- Mounting hardware may not be ideal for every engine bay and occasionally requires replacing bolts
Verdict A solid billet catch can that provides practical engine protection for compatible HEMI owners but may need minor parts or adjustments for a clean install.
6. WENJTP 150ml Universal Baffled 3-Port Oil Catch Can with Breather Filter and Drain Valve
| Capacity | 150 Milliliters |
|---|---|
| Ports | 3 (2 inlets, 1 outlet) |
| Material | 6061 Aluminum |
| Fit Type | Universal |
This 150 ml WENJTP catch can captures oil and moisture from crankcase ventilation to reduce intake contamination and carbon buildup. It is designed for universal fitment with three ports (two inlets and one outlet), a low-micron bronze filter, and a removable baffle for easier cleaning. Installation is typically bracket-mounted using the 360-degree adjustable mount and supplied adapters, and you can fit or bypass the breather filter depending on routing. The billet 6061 aluminum body and anodized finish give corrosion resistance and a lightweight feel. Practical benefits include simpler maintenance thanks to the drain valve and the ability to run the can in multiple configurations for tight engine bays. Limitations are its small 150 ml capacity, which means it needs frequent inspection on higher-blow-by engines, and fittings in the kit may not match every hose size so additional hardware could be required. Also note the tapered thread and included thread tape can prevent adapters from fully seating as pictured, which may surprise some installers.
Best for: A practical optimizer looking for an affordable, durable catch can to reduce intake oil contamination and extend engine life without overpaying for brand-name parts.
Less Ideal for: Drivers who want a maintenance-free, large-capacity solution or need guaranteed direct-fit, vehicle-specific hardware should consider larger or model-specific cans instead.
- Compact billet 6061 aluminum construction resists corrosion and looks factory-quality
- Baffled design with a low-micron bronze filter improves oil separation and protects intake components
- 360 degree adjustable bracket allows flexible mounting in tight engine bays
- Removable internal media and drain valve make emptying and cleaning straightforward
- Small 150 ml capacity requires more frequent draining on high blow-by engines
- Adapter sizes included may not fit every hose without buying extra fittings
Verdict A budget-friendly, well-built small-capacity catch can that delivers solid separation performance for practical owners but requires regular emptying and possible extra fittings.
7. EVIL ENERGY Aluminum Oil Catch Can with Quick-Connect Fittings (3 oz)
| Compatibility | Designed for specific vehicle fitments (see product listing) |
|---|---|
| Filter | Fine mesh aluminum |
| Capacity | 3oz |
| Mounting | Includes custom bracket and quick-connect fittings |
This EVIL ENERGY oil catch can is a compact, vehicle-tailored air oil separator that captures oil vapor and contaminants from the PCV side to reduce intake-valve gunk and keep the engine cleaner. It installs using the supplied custom bracket, hoses, and quick-connect aluminum PCV fittings so most of the fitment work is plug-and-play for compatible engines. The can uses a fine mesh aluminum filter and a rotating removable base with an O-ring seal for easier drainage and leak protection. Practical benefits include lower intake deposits over time and a simple service routine — the manufacturer suggests inspecting and cleaning every 500 to 1000 miles depending on use. Limitations to note are the small 3 oz capacity which requires more frequent emptying on high-mileage or boosted applications, and some users report the cup threads can seize if not treated with anti-seize during installation, which makes drainage harder. Bracket clearance around the can can be tight on some engine bays so access for removal may be restricted.
Best for: Balanced drivers who want a practical, install-friendly catch can to reduce intake contamination while keeping installation simple and minimally invasive.
Less Ideal for: Drivers planning heavy track use, frequent high-boost operation, or who prefer long-service, large-capacity cans should consider larger-capacity alternatives or purpose-built racing separators.
- Vehicle-specific fitment with custom bracket and quick-connect PCV fittings for easier installation
- Fine mesh aluminum filter and baffled design to capture small oil vapors
- Rotating removable base with O-ring seal for more straightforward drainage and leak resistance
- Aluminum construction that blends with factory components and resists corrosion
- Small 3 oz reservoir requires frequent emptying on hard-driven or boosted engines
- Cup threads have a reported tendency to seize if anti-seize is not used during installation
- Bracket placement can be tight, limiting access to the drain cup on some engine layouts
Verdict A well-made, easy-to-install factory-style catch can for buyers wanting a balanced, low-hassle solution, but its 3 oz capacity and tight mounting may not suit high-demand or track-focused use.
Choosing the Right Mitsubishi Eclipse Oil Catch Can: Key Factors to Consider
Fitment and Mounting
Proper fitment matters because tight engine bays on the Mitsubishi Eclipse leave little room for improvised installs. A catch can with a compact footprint and adjustable mounting bracket reduces the chance of interference with hoses, wiring, or heat sources. Consider whether the kit includes a bracket that bolts to existing engine points or requires custom fabrication.
Mounting location also affects hose routing length and bend angles, which can influence flow and condensation buildup. Look for cans with mounting options that permit a level orientation and easy access to the drain or sight glass to simplify maintenance.
Filtration and Separation Method
How a catch can separates oil and vapor affects long-term intake cleanliness. Baffle stacks, mesh filtration, and coalescing media each trap droplets differently. Systems with multiple stages or coalescers typically remove finer mist than simple single-chamber designs.
Evaluate whether the can uses replaceable elements or washable internals, since ease of cleaning impacts lifecycle cost and performance consistency. A visible sight window or clear collection chamber lets you monitor how much oil has accumulated and when to service it.
Hose Quality and Connection Types
Hose materials and fittings determine reliability under heat and vacuum conditions. Reinforced rubber or braided silicone hoses resist collapse and degradation, which is important for maintaining flow during normal engine vacuum cycles. Barbed fittings with clamps provide a more secure connection than push-fit setups in a high-vibration environment.
Check for included adapters that match the PCV and intake ports on the Mitsubishi Eclipse to avoid additional purchases. Proper hose length and routing guidelines reduce kinks and sharp bends that can trap condensate or restrict flow.
Drain Design and Serviceability
Ease of draining and cleaning greatly affects whether you will maintain the catch can as recommended. Threaded drain plugs, petcock valves, or quick-release fittings each have tradeoffs between convenience and potential leak points. A secure threaded drain is often more reliable for a vehicle subject to varying road conditions.
Also consider how easy it is to disassemble the can for internal cleaning. Units with clear instructions, tool-free access, or standard fasteners make routine maintenance faster and reduce the risk of improper reassembly.
Capacity and Overflow Protection
Capacity determines how often the can needs servicing and how it handles heavy blow-by episodes. Smaller cans may fill rapidly under spirited driving or towing, increasing overflow risk. A can with a larger sump or a baffled reservoir reduces the chance of oil being carried into the intake during high flow conditions.
Some designs incorporate anti-siphon features or internal baffling to prevent liquid from being drawn back into the PCV system. Matching capacity to typical driving patterns helps ensure consistent protection without frequent emptying.
Materials and Corrosion Resistance
Durable materials protect long-term performance in an engine bay exposed to heat, salts, and hydrocarbons. Aluminum or stainless steel housings resist rust and tolerate repeated disassembly better than softer metals. Anodized or powder-coated finishes add protection against corrosion and make cleaning easier.
Also consider the quality of brackets, clamps, and threaded fittings. Corrosion-resistant fasteners and vibration-resistant mounting hardware reduce the likelihood of loosened connections or leaks over time.
FAQ
Will a catch can improve engine performance on my Mitsubishi Eclipse?
A catch can does not directly boost horsepower, but it helps prevent oily deposits from building up in the intake and on valves. That buildup can affect throttle response and long-term combustion efficiency, so removing oil vapor can preserve the engine’s original performance characteristics.
How often should I empty the oil catch can?
Drain frequency depends on driving style and how much blow-by your engine produces. Many owners check the can monthly or at routine maintenance intervals and empty it when the sump reaches one third to one half full. Heavier use or frequent high RPM driving usually requires more frequent draining.
Can I install an oil catch can myself on the Mitsubishi Eclipse?
Many owners can install a catch can with basic tools if the kit includes clear hoses, fittings, and a mounting bracket. Installation involves routing hoses between the PCV and intake and securing the can in a safe location. If you are unsure about hose routing or engine access, a professional installation ensures proper fitment and reliability.
Does a catch can require special hoses or adapters?
Some installations need specific hose diameters or adapters to mate with the Eclipse’s PCV and intake ports. Kits that include vehicle-specific fittings or a range of adapters simplify the process. Using high-quality, reinforced hoses helps prevent collapse and maintains proper flow under vacuum.
Will a catch can affect the car’s emissions or check engine light?
Properly installed, a catch can should not trigger emissions faults because it does not alter sensor inputs or exhaust components. However, poorly routed hoses, leaks, or blocked ventilation paths can create pressure issues that may lead to diagnostic codes. Follow the installation guidance to avoid introducing problems.
How We Chose the Best Mitsubishi Eclipse Oil Catch Can
Our shortlist reflects focused editorial filters for Mitsubishi Eclipse owners. We prioritized units with documented compatibility or universal designs that match the Eclipse engine layout, emphasizing secure mounting options and hose routing that avoid interference with existing components. Filtration performance was judged by separator design, baffle configuration, and the presence of replaceable or washable filter elements. We also evaluated build quality factors such as billet or aluminized housings, threaded drain ports for easy servicing, and vibration-resistant brackets. Maintenance needs like drain frequency, visible sight windows, and ease of disassembly were weighed. Exclusions: we omitted catch cans that lack clear fitment guidance for the Eclipse, homebrew solutions without durable construction, and products that rely solely on passive ports without a reliable separation method.
Our full evaluation process is outlined in our review methodology.
Conclusion
Choosing the right oil catch can for a Mitsubishi Eclipse comes down to fitment, separation efficiency, and how the unit integrates with the engine bay. Prioritize a secure mount, a reliable separation method, and service features that match your driving habits. Balance capacity against maintenance willingness and select durable materials and quality hoses to reduce long-term hassle. With those priorities in mind, you can pick a catch can that protects intake components and helps maintain engine performance over time.
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