Mustang Oil Catch Cans

Why Every Mustang Engine Needs a Catch Can

The 5.0 Coyote is a direct-injection engine. So is the 2.3L EcoBoost. That distinction matters because direct injection sprays fuel straight into the cylinder, not through the intake port, which means there's no fuel washing the intake valves clean on every intake stroke. Oil vapor from the PCV system continuously recirculates through those ports, and over time it bakes onto the valve faces as carbon deposits. The result is degraded airflow, reduced combustion efficiency, and a cleaning bill that runs into the hundreds on higher-mileage engines.

A Mustang oil catch can intercepts that vapor before it reaches the intake. Our 4-stage diffuser design uses custom-formed stainless steel coalescing media inside a CNC-machined billet aluminum body. The oil separates out and drops into the reservoir, and you drain it at your next oil change. It's a straightforward solution to a problem every Coyote and EcoBoost owner will eventually face.

Oil catch can installed on a Ford Mustang 5.0 Coyote V8 engine.

Mustang-Specific Fitment From Fox Body to S650

A Mustang catch can that doesn't fit your engine bay correctly isn't doing you any favors. Generic kits with universal brackets and mismatched fittings introduce slack into the hose routing and rely on adapters where your factory PCV connections should be. Our kits are built around specific Mustang configurations, and our Plug N Play™ fittings snap directly onto your factory PCV ports without cutting a single line.

Coverage spans the full Mustang lineup. Fox Body and SN95 owners running the 5.0 or 4.6L get dedicated billet kits with period-correct routing. S197 GT owners have options for naturally aspirated, Roush, and Edelbrock supercharged builds. S550 and S650 owners running the Gen 3 Coyote, including the 2024-2026 Dark Horse, have multiple configurations available depending on their power adder. The 2.3L EcoBoost has its own dedicated kits, including a clean side separator for boosted applications where crankcase pressure under load can force oil vapor back through the fresh air inlet.

For forced induction builds specifically, a dual valve Mustang oil separator manages both the dirty side PCV circuit and the wide-open throttle port. Under boost, crankcase pressure spikes and a single-valve setup runs out of authority. The dual valve design keeps the system in balance across the full RPM range, from idle vacuum to wide-open throttle. If you run a Whipple, VMP, Roush, or Edelbrock blower on your Coyote, the dual valve kit with a clean side separator is the correct configuration.

If you're still deciding on configuration, our most popular catch can kits page is a solid starting point. Ford truck owners can find F-150-specific kits in our Ford truck and SUV catch can collection, and our full oil catch can lineup covers every platform we build for.

Protect Your Investment Before the Mileage Adds Up

Kits engineered specifically for your Mustang's engine. Every OEM connector included. Thirty minutes or so to install. Find the right kit for your year, engine, and power adder, and keep that intake clean.

Frequently Asked Questions

What is the purpose of the oil catch can on a Mustang?

The PCV system on your Mustang vents crankcase blow-by gases back into the intake manifold. Those gases carry oil vapor, moisture, and combustion byproducts that, over time, coat intake valves and throttle bodies with carbon. On a direct-injection engine like the 5.0 Coyote or 2.3L EcoBoost, that carbon builds up faster because there's no port injection fuel wash to keep the valves clean. A catch can sits in the PCV line and removes oil vapor before it reaches the intake, depositing it in a reservoir you drain periodically rather than letting it accumulate on your valves.

Are oil catch cans good for your engine?

Yes, particularly on direct-injection engines. A properly designed catch can with real coalescing media reduces oil and moisture entering your intake tract, slowing carbon buildup on intake valves, extending spark plug life, and keeping combustion cleaner over the long term. The measurable benefit is most significant on the 5.0 Coyote and 2.3L EcoBoost, both of which rely entirely on PCV recirculation to manage crankcase blow-by with no port injection to compensate.

Are oil catch cans bad in the winter?

Only if the can isn't maintained. In cold climates, moisture in the blow-by stream can condense more aggressively inside the catch can reservoir during short trips before the engine fully warms up. If the can goes too long without being drained, that moisture can accumulate and, in extreme cold, freeze in the hose or reservoir. The fix is straightforward: Drain the can more frequently in winter months, particularly if your driving consists mostly of short trips. A catch can with a drain valve makes that process quick and tool-free.

Will a catch can void my Mustang's warranty?

We design UPR catch can kits to work with factory emissions controls and sensors. They simply filter the PCV vapors. While warranty policies vary by manufacturer, catch cans are widely accepted as preventative maintenance and do not alter factory components. We have dealerships purchase and install catch cans for their customers, while others may blame any failure on the catch can or other aftermarket parts. Check with your dealer for details.