Frequently Asked Questions About 6.7 Powerstroke Oil Catch Cans
Q1: Does the 6.7 Powerstroke need an oil catch can?
Yes, the 6.7L Powerstroke's factory CCV system recirculates crankcase blow-by gases directly back into the intake with no oil filtration. Over time, oil vapor coats the intercooler, turbo compressor wheel, and intake manifold, reducing cooling efficiency and accelerating component wear.
A 6.7 Powerstroke oil catch can intercepts this oil vapor before it enters the intake, keeping your charge-air system clean and operating at peak efficiency. It is especially recommended for tuned trucks, heavy towing applications, and high-mileage engines.
Q2: What does a CCV catch can do on a 6.7 Powerstroke?
A CCV (Crankcase Ventilation) catch can installs inline between the engine's crankcase ventilation outlet and the intake system. Inside the catch can, a baffled separation chamber forces crankcase gases through directional changes that cause oil droplets to coalesce on the baffle walls and drain into a reservoir.
The cleaned gas continues to the intake while the collected oil is retained for periodic draining. This prevents oil contamination of the intercooler, intake manifold, turbo, and charge-air cooler boots.
Q3: Is a catch can the same as an oil separator for the 6.7 Powerstroke?
Yes, "oil catch can" and "oil separator" refer to the same type of product on the 6.7L Powerstroke platform. Both describe a device that mechanically separates oil vapor from crankcase gases before they re-enter the intake.
The terminology varies by manufacturer and community, but the function is identical. A 6.7 Powerstroke oil separator (catch can) uses internal baffling to capture and collect blow-by oil.
Q4: How often do I need to empty the catch can on my 6.7 Powerstroke?
Drain intervals depend on driving conditions and engine condition. On a healthy 6.7 Powerstroke used for daily driving, check and drain the catch can every 3,000–5,000 miles. If you tow heavy loads, run a performance tune, or have a high-mileage engine with increased blow-by, check every 1,500–2,500 miles.
In cold climates, check more frequently in winter months when condensation levels are higher. The drain plug is accessible from the bottom of the unit for easy servicing.
Q5: Will a catch can void my 6.7 Powerstroke warranty?
An oil catch can is a non-destructive, reversible modification that does not permanently alter any factory components. It can typically be removed and the stock CCV routing restored before any dealership visit. However, warranty decisions are ultimately at the dealer's discretion.
The Magnuson-Moss Warranty Act protects consumers from blanket warranty denials for aftermarket parts; the dealer must prove the catch can cause a specific failure to deny coverage for that component. For complete peace of mind, consult your dealer's service department before installation.
Q6: How difficult is it to install a catch can on a 6.7 Powerstroke?
Installation is straightforward and can be completed with basic hand tools in approximately 30–45 minutes. The catch can mount to existing factory mounting points using the included bracket, no drilling or permanent modifications required. The CCV hose is disconnected from the factory routing and rerouted through the catch can using the supplied hoses and fittings.
Detailed installation instructions are included with every kit, and our live support team is available to assist with any fitment questions.
Q7: Can a catch can reduce oil consumption on the 6.7 Powerstroke?
A catch can does not reduce the engine's oil consumption. It captures and collects oil vapor that would otherwise be burned through the intake system. If your 6.7 PowerStroke is losing oil through the CCV system, a catch can will collect that oil instead of allowing it to coat the intake and be combusted.
You will still need to drain the collected oil from the catch can periodically. If your engine is consuming oil at an abnormal rate, have it inspected for worn piston rings, valve seals, or turbocharger seal leaks.
Q8: Does a catch can improve fuel economy on the 6.7 Powerstroke?
Indirectly, yes. By keeping the intercooler and intake tract free of oil contamination, a 6.7 Powerstroke ccv catch can helps maintain the charge-air system's thermal efficiency. A clean intercooler cools intake air more effectively, producing denser charge air that the engine can burn more efficiently.
While the improvement is not dramatic, typically 0.3–0.8 MPG on a truck that was previously running with a contaminated intake. It compounds over thousands of miles, especially on tuned trucks and heavy towing applications where every fraction of efficiency matters.
Q9: What's the difference between a catch can and a full CCV reroute on the 6.7 Powerstroke?
A catch can filters crankcase gases and returns cleaned air to the intake — it maintains the factory closed CCV circuit. A CCV reroute vents crankcase gases to the atmosphere instead of recirculating them, eliminating the oil re-entry pathway.
A catch can is the cleaner option for trucks that want to maintain a sealed, functional system layout. A CCV reroute is typically chosen by trucks running specialized configurations. Both approaches address the same underlying problem, oil contamination of the intake tract.
Q10: Does EGR Performance offer a warranty and return policy on catch cans?
Yes. EGR Performance provides a 1-year warranty on all oil catch cans, covering manufacturing defects and material failures under normal use. We also offer a 45-day hassle-free return policy.
If the catch can does not fit your vehicle or you are not satisfied for any reason, return it within 45 days for a full refund. All orders ship quickly from our local warehouses to get your truck protected as soon as possible.