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If you own a Lexus NX, adding an oil catch can can help limit oil and vapor entering the intake and keep the intake tract cleaner over time. Choosing the right unit matters because fitment, mounting options, and serviceability determine how effective and how easy the system will be to live with. This guide highlights seven shortlisted oil catch cans that are suitable for the Lexus NX and summarizes the evaluation criteria we used, including build quality and installation complexity. Read on to find a catch can solution that fits your goals and maintenance preferences.
Looking for other parts? See all Lexus NX parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | K&N 81-0813 Air Oil Separator (Catch Can) |  |
| Best quality Built to a higher standard if you want something more solid | EVIL ENERGY 300ml Baffled Oil Catch Can with NBR Hose Kit |  |
| Best Value The sweet spot between price and what you get | EIGIIS 300ml Universal Baffled Aluminum Oil Catch Can Kit |  |
| Best budget The cheapest option that still gets the job done reliably | YESHMA Universal Baffled Aluminum Oil Catch Can, 300ml |  |
| Highest Rated A top-rated pick with lots of positive feedback | muge racing 400ml Baffled Aluminum Oil Catch Can Kit with Breather Filter |  |
| Most popular A crowd favorite that many people choose with confidence | SPEEDWOW Universal Baffled Oil Catch Can Kit (300 ml) |  |
| Best Seller A high-volume bestseller chosen again and again | EVIL ENERGY 300ml Baffled Oil Catch Can Kit with Breather Filter |  |
1. K&N 81-0813 Air Oil Separator (Catch Can)
| Model Number | 81-0813 |
|---|---|
| Included Components | Catch Can |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | K&N Engineering, Inc. |
The K&N 81-0813 Air Oil Separator is a vehicle-specific catch can intended to replace the factory crankcase vent line and capture oil and contaminants before they reach the intake. It installs in about 30 minutes with basic tools and uses factory-style quick-connect hoses so you can mount it in a convenient location in the engine bay and remove the reservoir without tools. The high-capacity reservoir reduces intake buildup and helps protect against power loss and premature detonation caused by blowby, which is useful on turbocharged or high-mileage engines. Components feel sturdy and the machined black finish looks factory-quality. Important limitations include a vehicle-specific fitment requirement and a note that it is not legal for sale or use in California on pollution-controlled vehicles, so confirm compatibility with the Lexus NX model year and local regulations before buying.
Best for: Balanced buyers who want a durable, factory-style catch can that reduces intake oil contamination and is straightforward to install and maintain on a compatible Lexus NX.
Less Ideal for: Owners who cannot confirm exact fitment for their Lexus NX engine bay layout or who need a California-compliant emissions part should consider alternative solutions.
- Vehicle-specific engineering for a direct fit when matched to the correct application
- High-capacity reservoir that reduces oil and contaminant carryover into the intake
- Factory-style quick-connect hoses for easier installation and removal
- Sturdy machined construction with a clean finish
- Fitment can be blocked by other engine-bay components on certain vehicles so vehicle-specific clearance must be checked
- Not legal for sale or use in California on pollution-controlled motor vehicles
Verdict: A robust, vehicle-specific K&N catch can that reduces intake oil contamination with a factory-style install and high-capacity reservoir.
2. EVIL ENERGY 300ml Baffled Oil Catch Can with NBR Hose Kit
| Capacity | 300ml |
|---|---|
| Hose length | 5ft (1.5m) |
| Hose ID | 3/8" |
| Port thread | M16×1.5 |
This EVIL ENERGY catch can is a compact, baffled separator intended to intercept crankcase vapors before they reach the intake. It installs inline with PCV or breather hoses and can be fitted as a vented breather or as a sealed can depending on the Lexus NX routing you choose. The internal baffle plus supplied stainless wool and optional steel balls improve coalescing so oil and moisture collect in the 300ml reservoir rather than the intake tract. The kit includes a 5ft NBR hose and threaded M16x1.5 ports for a secure connection and comes with a mounting bracket and basic hardware. In practice it keeps throttle body and intake runners cleaner on performance engines and is small enough to tuck into a tight engine bay. Limitations are the universal bracket and hose lengths, which may require trimming or extra hose for a neat fit in an NX, and the O-rings and supplied clamps can be fiddly to install. Also in freezing conditions the unit can accumulate moisture and needs more frequent servicing.
Best for: Performance-oriented Lexus NX owners who prioritize protecting intake valves and maintaining intake cleanliness to preserve power and longevity.
Less Ideal for: Owners who prefer a vehicle-specific plug-and-play solution or who want a maintenance-free option for extremely cold climates should consider a model engineered specifically for the NX or a heated factory-style system.
- Removable baffled core and coalescing wool that effectively separate oil and moisture from PCV gases.
- Compact 300ml size fits into tighter engine bays common on the Lexus NX.
- Includes durable NBR hose with good heat and wear resistance for routing in engine compartments.
- Threaded M16x1.5 ports and supplied fittings provide a secure seal when installed properly.
- Universal bracket and hose lengths may require additional hose or fabrication for a clean, secure fit in an NX.
- O-rings and a couple of supplied clamps are small and can be awkward to work with during install.
- Not designed to manage freezing moisture without more frequent draining or reverting to stock routing in cold climates.
Verdict: A compact, well-performing baffled catch can that protects the Lexus NX intake when you are willing to adapt the universal bracket and hose routing for a tidy installation.
3. EIGIIS 300ml Universal Baffled Aluminum Oil Catch Can Kit
| Capacity | 300 Milliliters |
|---|---|
| Product Grade | Performance Part |
| Fit Type | Universal Fit |
| Material | Aluminum |
This EIGIIS catch can is a budget-friendly, universal-fit solution that traps oil and blow-by vapors before they reach the intake. It installs inline with the PCV or crankcase vent and uses internal baffling plus an optional breather to separate oil from gases; the bottom screw-off reservoir and included O-ring make draining and cleaning straightforward. The kit is fully TIG welded and includes multiple barbed fittings so you can match common hose sizes, though several buyers note the supplied vacuum hose is thin and most installers replace it with sturdier fuel- or vacuum-rated hose. The aluminum construction and anodized finish give a durable, factory-quality look without a high price. Mounting requires a bracket or DIY L-bracket in many engine bays and some trimming or reorientation may be necessary to clear components. For a practical owner who wants preventive maintenance on a turbocharged or high-mileage Lexus NX, this offers the key functions of higher-end cans at a lower cost, provided you plan to upgrade hoses and fit a secure mount.
Best for: Practical optimizers who want a low-cost way to reduce intake contamination and extend engine life on a Lexus NX without paying for a premium branded can.
Less Ideal for: Drivers who want a completely plug-and-play, vehicle-specific kit with factory-style mounting and high-end braided hoses should consider purpose-built Lexus NX solutions instead.
- Compact 300ml reservoir that is easy to drain via screw-off bottom
- TIG-welded aluminum body with anodized finish for durability
- Includes multiple barbed fittings and O-ring to help achieve an airtight seal
- Internal baffle and optional breather improve oil separation compared with an open line
- Supplied hose is low quality and commonly replaced by users
- Mounting hardware is basic and may require custom brackets or modification
Verdict: A cost-conscious, effective catch can that delivers the core benefits of oil separation for a Lexus NX if you replace the flimsy hose and fit a secure mount.
4. YESHMA Universal Baffled Aluminum Oil Catch Can, 300ml
| Capacity | 300ml |
|---|---|
| Material | Aluminum |
| Fit Type | Universal |
| Included fittings | 6mm, 8mm, 10mm |
This YESHMA catch can is a simple, budget-focused solution for reducing oil and moisture recirculation into the intake. It uses an internal baffle and a 300ml reservoir to separate blow-by condensates from gases routed through PCV or valve cover ports, and the polished aluminum body is easy to clean. The kit includes three fittings (6mm, 8mm, 10mm) and a short fuel-line so you can adapt it to common hose sizes. Practical benefits are straightforward: it helps keep intake runners and valves cleaner under spirited driving and can slow carbon buildup on turbo or direct-injection engines. On the downside the supplied hose is reported as thin and not ideal for sustained high temperatures, and the 300ml capacity means more frequent checks and draining on engines with heavy blow-by. Also universal fitment means you will need to plan a secure mounting location and may need to source a more heat-resistant hose and longer lines for neat routing on a Lexus NX.
Best for: Budget-conscious Lexus NX owners who want an affordable way to reduce intake contamination and slow carbon buildup without replacing factory components or spending on a high-end branded kit.
Less Ideal for: Drivers seeking a no-fuss, vehicle-specific plug-and-play solution or those who prefer a large-capacity, high-temperature race-grade system should consider purpose-built kits instead.
- Baffled 300ml reservoir separates oil and moisture from PCV/valve cover gases.
- Lightweight aluminum body is durable and easy to clean.
- Includes three fitting sizes for common hose diameters so it adapts to different ports.
- Dipstick-style level indicator lets you check fluid without disassembling the can.
- Supplied hose is thin and not rated for high under-hood temperatures.
- Small 300ml capacity requires more frequent maintenance on engines with heavy blow-by.
- Universal kit requires finding and fabricating a secure mount for neat installation on the vehicle.
Verdict: A wallet-friendly, adaptable catch can that works for a Lexus NX if you expect to do a bit of hose and mounting customization and swap the supplied hose for higher-temperature lines.
5. muge racing 400ml Baffled Aluminum Oil Catch Can Kit with Breather Filter
| Capacity | 400 ml |
|---|---|
| Material | Aluminum |
| Hose size included | 3/8 inch fuel line supplied |
| Installation options | Vent with breather or sealed can |
| Adapters | Three adapter sizes with O-rings |
This muge racing kit installs as an inline air oil separator to reduce oil vapor recirculation into the intake on turbocharged and direct-injection engines. It is typically mounted in the engine bay between the PCV and intake, where the internal baffle and steel-wool style media condense vapor to collect liquid in the 400 ml reservoir for periodic draining. The kit includes three adapter fittings with O-rings, a breather filter that lets you run the unit open or sealed using the included plug, hose clamps, a dipstick for quick level checks, and basic hose and bracket hardware. The aluminum can is lightweight and anodized for appearance, and the baffled design helps keep oil from sloshing back into the system. Practical limitations are the short, thin supply hose and a marginal mounting bracket that some users found awkward, so expect to replace the hose and possibly modify the mount for a neat installation and leak-free fittings on some engines.
Best for: A reliability-focused buyer who wants a low-cost way to reduce carbon and oil buildup in the intake and protect long-term engine health on a Lexus NX, prioritizing functional protection over show-piece polish.
Less Ideal for: Those who prefer a plug-and-play, vehicle-specific kit with OEM-style hoses and mounting hardware should consider a model made specifically for the Lexus NX instead.
- Baffled 400 ml reservoir captures condensed oil and moisture to reduce intake contamination.
- Anodized aluminum construction offers strength while keeping weight low.
- Includes multiple adapter fittings and O-rings to fit a range of hose sizes.
- Can be installed as a sealed recirculation can or vented with the supplied breather for flexibility.
- Built-in dipstick allows quick fluid checks without frequent disassembly.
- Supplied hose is thin and short and may need replacement for reliable service.
- Mounting bracket and holes may require modification for secure firewall or bracket attachment.
- Some fittings have leaked for users without additional thread sealant.
Verdict: A budget-friendly baffled aluminum catch can that effectively reduces oil vapor recirculation but usually needs upgraded hose and a better mount for a clean, reliable Lexus NX installation.
6. SPEEDWOW Universal Baffled Oil Catch Can Kit (300 ml)
| Fit Type | Universal Fit |
|---|---|
| Fuel Type | Gasoline |
| Item Weight | 2 pounds |
This SPEEDWOW catch can catches oil and moisture from the PCV/CCV flow before it reaches the intake, using an internal baffle and a bronze micron filter to separate condensate into the 300 ml reservoir. Installation is typically a direct-fit universal approach for many engines and is intended to be plumbed in front of the PCV system rather than inline with the PCV valve. The kit includes NBR 3/8" hose, hose clamps, an aluminum bracket, a removable bottom for draining and a dipstick that doubles as a suction/drain port. Real-world benefits include cleaner intake tract and fewer carbon deposits over time, plus the ability to check and empty the can without removing the whole unit. Limitations to expect are the universal mounting bracket and clamps that some installers replace with sturdier hardware, occasional confusion about inlet/outlet port labeling, and the need to monitor or drain more frequently in cold climates where condensation can accumulate and freeze.
Best for: Convenience-driven owners who want a mostly ready-to-install catch can that reduces intake contamination with minimal sourcing of extra parts and straightforward routine maintenance.
Less Ideal for: Buyers looking for a vehicle-specific, bolt-on Lexus NX kit with custom brackets and fittings should consider dedicated OEM-style options instead.
- Built-in baffle and bronze micron filter to capture oil and moisture before it reaches the intake
- Includes hoses, clamps, mounting brackets and Teflon tape for a mostly complete installation kit
- Removable bottom and dipstick make checking and draining simple without disassembly
- Uses NBR 3/8" hose with good oil and heat resistance supplied with the kit
- Universal bracket and supplied hose clamps can be underbuilt for some engine bays and may need upgrading
- Compact 300 ml capacity means more frequent checks on engines that produce heavier blow-by
- Not designed to be used as a filter in the PCV system inlet or to replace factory PCV components
Verdict: A compact, convenience-focused universal catch can kit that provides effective oil separation but may need stronger clamps or a custom bracket for a tidy Lexus NX installation.
7. EVIL ENERGY 300ml Baffled Oil Catch Can Kit with Breather Filter
| Capacity | 300 Milliliters |
|---|---|
| Fuel Type | Gasoline |
| Fit Type | Universal |
| Manufacturer | Speedwow Tuning |
This EVIL ENERGY catch can is a compact, universal baffled separator meant to intercept oil and blow-by from the crankcase before it reaches the intake tract. It is typically installed in-line with PCV hoses or used as a vent on pre-PCV systems using the included hose and optional breather filter. The 300ml aluminum tank, internal baffle and stainless wool element help trap oil droplets while the dipstick makes level checks straightforward. For a Saturn Vue, the kit is suited to owners who want a simple add-on to help limit intake valve deposits and keep the intake cleaner between services. Installation requires routing the provided hose and securing the can in the engine bay where there is room, and the universal fittings mean shop adjustment or small adapters may be needed for some hose sizes on specific Vue model years. The kit is practical and affordable but small capacity means more frequent inspection and draining than larger catch cans, and universal fitment lacks vehicle-specific brackets or fittings.
Best for: Risk-averse mainstream Saturn Vue owners who prioritize protecting the intake from oil contamination with a straightforward, low-cost add-on and prefer something simple to install and inspect.
Less Ideal for: Owners seeking a vehicle-specific kit with dedicated brackets, larger capacity, or a plug-and-play harness should look for purpose-built options designed specifically for the Saturn Vue.
- Baffled internal design and stainless wool help separate oil from PCV air
- Includes breather filter option for venting on pre-PCV setups
- Compact 300ml aluminum tank is lightweight and corrosion resistant
- Dipstick provided for easy fluid level checks
- 300ml capacity requires more frequent draining compared with larger cans
- Universal mounting and hose sizes may need adapters or custom brackets for clean installation on a Saturn Vue
Verdict: A compact, affordable baffled catch can kit that gives Saturn Vue owners a simple way to reduce oil vapor entering the intake and help keep the engine cleaner between services.
Choosing the Right Lexus NX Oil Catch Can: Key Factors to Consider
Fitment and Mounting
Proper fitment is crucial because the engine bay on the Lexus NX has limited space and specific routing paths for PCV and breather lines. A catch can that lists compatible hose diameters and offers versatile mounting brackets will reduce the need for custom fabrication or re-routing. Consider the can's height and clearance requirements relative to surrounding components like the battery, fuse box, and intake tubing.
Mounting location also affects hose length and routing. Short, gentle hose runs minimize vacuum flow disturbances and reduce the chance of kinks. Look for systems that include hardware or template guidance so the install stays tidy and service access remains possible without removing major components.
Hose and Fitting Compatibility
Hose diameter and fitting type determine whether the catch can will integrate cleanly with existing PCV and intake hoses. Matching the OEM hose sizes avoids restrictions or leaks. Some units use barbed fittings with clamps while others use threaded ports and adapters; each approach affects installation time and the quality of the seal.
Also check whether the fittings are reversible or swappable to suit different hose orientations. Robust fittings reduce the risk of vacuum leaks and make the system more reliable over a wide range of operating temperatures.
Construction and Sealing
Durable construction materials like billet aluminum or chemically resistant plastics extend service life in a hot engine bay. Equally important are gasket and O-ring seals at the bowl or drain joints to prevent oil vapor leaks. A quality seal keeps blow-by vapors contained and avoids odor or performance issues.
Pay attention to thread quality and anodizing or coating that resists corrosion. Components that resist warping and maintain a tight seal under heat cycles will require less frequent attention and provide more consistent performance.
Serviceability and Drain Options
How you empty the catch can affects long-term convenience. Removable bowl designs that allow direct draining without disconnecting hoses simplify routine maintenance. Some units offer a quick-drain valve that lets you evacuate collected oil easily while keeping the system sealed.
Consider the accessibility of the drain or bowl once mounted. A drain valve positioned in a hard-to-reach spot negates the convenience of frequent checks. Look for clear inspection windows or simple bowl removal mechanisms to make monitoring fluid levels straightforward.
Capacity and Separation Efficiency
Capacity determines how often you need to service the can, while separation efficiency affects how much oil actually reaches the intake. Larger capacity reduces service frequency but may be physically larger and harder to fit. Efficient internal baffling or mesh media improves oil capture without requiring excessive size.
Evaluate the tradeoff between a compact unit that needs frequent draining and a larger can that is less convenient to install. The best balance depends on how often you perform maintenance and how severe the engine's blow-by tends to be.
Installation Complexity
Installation complexity encompasses the number of hoses to reroute, the need for special tools, and any trimming or modification required. Simpler installs minimize the chances of mistakes that cause leaks or poor routing. Products that include clear instructions, labeled fittings, and common fasteners will reduce install time.
If you plan to DIY, prioritize kits that include mounting hardware and easy-to-use fittings. Professional installation should still be straightforward if mounting options and hose adapters are well thought out.
How We Chose the Best Lexus NX Oil Catch Can
We focused on products that offer reliable crankcase ventilation control and practical fitment for the Lexus NX platform. Key evaluation criteria included build materials and sealing methods to ensure long-term durability; inlet and outlet sizing plus hose fittings to match stock PCV and intake plumbing; mounting options and included hardware to determine ease of installation in the available engine bay space; serviceability such as drain or removable-bowl designs for routine maintenance; and overall containment capacity to balance service intervals with space constraints. We excluded universal offerings that lack suitable hose sizes or unclear mounting provisions for the Lexus NX, as well as devices with ambiguous sealing or filtration claims. The final list emphasizes units that balance robust construction, straightforward install procedures, and accessible maintenance without relying on model-specific adapters or extensive modification.
Our full evaluation process is outlined in our review methodology.
FAQ
What does an oil catch can do on a Lexus NX?
An oil catch can captures oil and condensate from crankcase ventilation before those vapors reach the intake. This helps reduce carbon and oil buildup on intake ports and valves, which can preserve airflow and combustion consistency over time. Results vary with driving habits and maintenance frequency.
How often should I check or drain a catch can?
Check intervals depend on engine condition and driving style but commonly range from monthly to every few thousand miles. Vehicles used for short trips or heavy load driving may collect fluid faster. Inspecting the can visually and draining when it reaches a moderate level keeps the system effective.
Will installing a catch can affect engine performance?
A properly plumbed catch can should not harm engine performance and can help maintain baseline performance by limiting intake contamination. Poorly routed hoses, restrictions, or leaks can cause drivability issues, so correct fitment and secure sealing are important for safe operation.
Can I install a catch can myself on a Lexus NX?
Many owners can install a catch can with basic hand tools if the kit provides clear instructions and compatible fittings. Expect to route hoses, secure a bracket, and verify clearances. If routing is tight or hardware is not included, consider professional assistance to avoid leaks or interference.
Does a catch can require special maintenance?
Maintenance is straightforward and usually involves periodic draining and cleaning of the collection chamber and any internal baffles. Inspect seals and clamps for wear and replace them if they leak. Regular maintenance keeps separation efficiency high and prevents overflow.
Are there risks to using a catch can with forced-induction engines?
With turbocharged applications, a catch can must handle higher pressure and temperature excursions and use fittings that resist blow-off and collapse. Using a can and hoses rated for those conditions reduces the risk of leaks or component failure. Proper installation and routing remain critical to safe operation.
Conclusion
When choosing a catch can for a Lexus NX, prioritize correct fitment, secure fittings, and easy serviceability. Those factors determine whether the system will remain effective and convenient to maintain in daily use. Balance capacity and separation efficiency against the physical constraints of your engine bay and your willingness to perform routine draining. With the right combination of mounting, hose compatibility, and durable construction, a catch can can help reduce intake deposits and support long-term engine health.
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