DIY Catch Can

Drivers can use the sight tube on the side of the can to decide when to drain it.

Oil catch cans are cans placed in cars to catch the excessive build-up of carbon and sludge from the intake system and the engine. Catch cans prevent the collection of such byproducts from gumming up the valve train, turbo, plumbing and intercooler. Such build up could also reduce the efficiency of the intercooler. Hence, the oil catch can allows the car to be cleaner, have more power and run more smoothly. Oil catch cans are easy to make at home and use in your own car.

Things You'll Need

• Air compressor filter
• Two fittings
• 14 mm wrench
• Knife
• Hose
• Horse clamps

Instructions

1. Use the wrench to screw the two fittings into the top sides of the air compressor filter.

2. Locate the PCV fuel line, and align the filter with the flow of the PCV into the manifold.

3. Use a knife to cut a hole into the PCV fuel line. Place the filter into the hole, in line with the manifold fuel flow.

4. Use the wrench to secure the filter into the hole.

5. Place a hose in the filter and attach it to the hole in the intake plumbing. Clamp it together with horse clamps.

References

• crxMPG: DIY PCV Catch Can
• Aaron Reed Baker: DIY Oil Catch Can