Oil Catch Can Kits

McNally Oil Catch Can Kits are a true oil PCV crankcase evacuation and separation system that is engineered to eliminate valve coking issues, increase fuel economy by eliminating oil associated detonation, reduce tail pipe emissions, and prolong engine life by removing damaging combustion by-products and trapping them from ingestion via the intake air charge.

GDI Engine Oil Catch Cans Features:

Improves Engine Performance
Engine Runs Cooler
Increases Fuel Efficiency

Understanding the need for a proper GDI Engine Oil Catch Can

Everyday vehicle use of a Gasoline Direct Injection (GDI) engine will cause the ingestion of a certain amount of oil, sulfur and waste carbon, etc. into the intake air system. Because a GDI engine is a closed system, this oil, sulfur, and waste carbon, etc. referred to as Blow-by naturally finds its way into the air intake system. This Blow-by results in loss of power, detonation, and long term burnt carbon crystal buildup on the pistons and valves reducing the air velocity and flow through the engine.

Without a GDI Engine Oil Catch Can this condition is progressive and exponentially impairs performance:

Reduced horse power and torque
Contaminated Catalytic Converter(s)
Reduced Catalytic Converter life requiring replacement runs +$2,000 each.
Fuel Mileage efficiency
And an increase in maintenance costs; intake mechanical cleaning runs from $1,200 to as high as $2,000 and up, EACH TIME. Chemical cleaning is MUCH less, however, creates further problems via corrosion of metal parts from VERY strong chemicals and even worse will eventually force the purchase of new Catalytic Converter(s) at $2,000 or so each.

Preventing or mitigating this challenge on YOUR GDI vehicle requires some unique engineering modifications such as a GDI Engine Catch Can to the closed Original Equipment by Manufacturer (OEM) Positive Crankcase Ventilation (PCV) system.

Bottom line is, without a proper evacuation system you WILL sustain long-term and expensive engine damage. This damage begins day/mile 1 of your vehicle's life and progressively gets worse. The McNally Gen 2 Universal Oil Catch Can Kits catches these harmful contaminants, which should be drained from the McNally Gen2 Oil Catch Cans at every oil change interval in compliance with the vehicle owner's manual maintenance schedule.

Our Clean Side Separator comes into play in boost, or heavy load conditions such as up a steep hill, when accelerating to pass or when towing a trailer (heavy Load = at approximately 75% of full power). Under these conditions, the cleaned airflow pulls from the Oil Catch Cans to the barb in front of the Throttle Body while the cleaned air from the GDI Engine Catch Can to the intake manifold plenum stops. Our system regulates this switch-over of air flow using the check valves included in the McNally Universal Gen 2 Oil Catch Can Kits. One valve closes while the other opens switching the flow within the system.

Our McNally Universal Gen 2 Oil Catch Can Kits ensures continuous crankcase evacuation no matter what the operating mode (e.g. idle or heavy load) The Universal Oil Catch Can Kits System employs a Dual Chamber Coalescing Separator found in no other. At idle or heavy load, our system detects the moment the intake manifold plenum becomes pressurized. That closes the Check Valve preventing the boost or heavy load from pressurizing the crankcase by opening the Fuel Injection head Check Valve allowing that inlet to provide the vacuum needed for continuous evacuation.

Sub-Categories

Clean Side Separators

This new design has many new features added to our existing design. While sticking with the Universal design of an Oil Catch Can we will finally have quick connect nozzles. Adding the quick connect nozzles to the McNally Catch Can was the first thing we wanted to do. So we finally did it! Another feature we added was to take the release valve and put it on the top as opposed to the previous design and have it on the bottom. This makes it easier and cleaner for the Oil Catch Can owner to use. Not only is the release valve on the top but there is now a Level Indicator within the can. As the can fills up a float will notify when it is time to empty the contaminants in the can. when it is time to empty the contaminants in the can.

Now for the fun stuff. First, Let's start with the check valves. Our old design needed the installer to cut hose and place check valves so that they face the correct way. With the Gen 2 Oil Catch Can design, the check valves are built in the Catch Can itself. This will make installation faster and easier. The McNally Gen 2 Oil Catch Can has had added features which makes this can a step ahead of the competition. Coalescent Filtration is still the main principle of filtering out the harmful contaminants that hurt your engine over time but there are other features added. The New McNally Gen 2 Oil Catch Can uses Thermal Differential and Centrifugal Force in addition to Coalescent filtration. First, a Centrifugal Force feature has been added to the design. As the contaminants enter into the can they are pushed into a spiral motion. Centrifugal Force pushes the particles against the cooler side walls of the Oil Catch Can and then falls where they condense. With the addition of these two features, vehicle owners should find the confidence that their McNally Oil Catch Can is doing the job right!

M. Felker - 7.29.18
"I purchased my McNally Catch can about year ago, and out off all the research I did, i settled on McNally. Your product surpasses my expectation by a mile. Not only is your product high quality and robust, but your customer service is fantastic. It's amazing what contaminates it's catching and keeping out of my engine. Each day I drive my Ford F150 FX4, I can feel and see results each time I get into the throttle. Thanks for great product developed in USA! Many thanks to your staff and your R&D folks."