Oil Catch Can 300ML Baffled Air Oil Separator - Cleaner Intake

Our review of this 300ML baffled oil catch can finds it to be a practical, no-frills solution for drivers who want to reduce oil and moisture reaching the intake. It is best suited to DIY mechanics and owners of vehicles with available engine-bay space who want a simple separator that traps vapors before they form carbon deposits. The single biggest reason to buy is the removable baffle and steel wool capture method, which actively reduces oil carryover and helps keep intake valves and pistons cleaner over time.

Key Features

• Baffled Design: The removable baffle with optional steel wool improves oil and moisture separation so less vapor reaches intake components.
• 300ML Capacity: A compact reservoir size that fits many engine bays while still providing useful oil collection before maintenance is needed.
• Universal Fit: The simple mounting and common port thread let this unit work with most vehicles provided there is enough space for installation.
• NBR Fuel Hose Kit: Included 5ft of 3/8' ID NBR hose offers wear and heat resistance for a durable connection between PCV and catch can.
• PCV System Compatibility: Can be installed with the breather filter as a vent for pre-PCV systems or inline as a sealed catch in PCV-equipped engines.
• Service Support: The vendor offers returns or exchanges for quality issues and customer support for fitment or installation questions.

Who It's For

This catch can is aimed at enthusiasts and routine-maintenance owners who want a straightforward way to reduce crankcase vapor contamination in their intake. It suits owners of cars like compact naturally aspirated or turbocharged models where space allows mounting a small 300ML tank and running a 3/8' hose to the PCV or breather.

It is less suitable for drivers who cannot access regular maintenance in cold climates without reinstalling the stock PCV or for those demanding a larger capacity or integrated filtration element beyond the simple steel wool/baffle arrangement.

Pros & Cons

Pros

• Well-built aluminum body and attractive finish noted by users for solid appearance and durability.
• Easy to install with the supplied 5ft NBR hose and standard M161.5 threaded ports for a secure fit.
• Effective at capturing crankcase vapors and preventing carbon buildup when maintained properly.
• Good value for the feature set and included hose kit compared with buying parts separately.

Cons

• 300ML capacity means more frequent draining than larger cans for high-blow-by engines.
• In freezing temperatures the increased moisture may freeze and require weekly cleaning or reinstalling the original PCV hose.

Specifications

Capacity	300ML
Material	Aluminum catch can
Hose length	5ft (1.5m)
Hose ID / OD	3/8' ID / 5/8' OD
Port thread	M161.5
Includes	Removable baffle, steel wool recommended, NBR hose kit

Our Verdict

The 300ML baffled catch can is a sensible, cost-effective upgrade for owners who want to keep intake components cleaner and extend engine life without complex plumbing. It pairs a durable aluminum can with a long NBR hose and simple baffle filtration, making it a good value for DIY fitters; owners in cold climates should be prepared for more frequent maintenance or temporary reversion to the stock PCV hose.

Frequently Asked Questions

Will this fit my vehicle?
It fits most vehicles that have room for a 300ML can and use 3/8' PCV/hose connections, but check engine-bay space before purchase.

Can it be used with a breather filter?
Yes, install with the breather filter for pre-PCV cars or inline without the breather for sealed PCV setups.

How often should it be cleaned?
Clean weekly in freezing or very moist conditions to avoid freezing; otherwise inspect and drain per your engine's blow-by rate.