Provent 200

January 2017.I purchased this for my "05 Jeep Liberty CRD diesel. The OEM PCV design is the same as the gas engine design which has proven woefully inadequate to suppressing the blowby gases that are generated at turbo boosted and diesel cylinder pressures. Those higher pressures and particulate heavy diesel exhaust were overwhelming my air intake and subsequently the turbocharger and intercooler with a forced diet of soot laden oil. This continuous diet of oil leaked out the turbocharger outlet and just made an absolute mess of the passenger side of the engine and undercarriage. So much that I call my Liberty the DEEPWATER HORIZON II.Installation though not difficult required some thoughtful layout and fabrication of fittings to adapt the approximately 1" diameter ProVent connections to a more reasonable 3/4" hose size. The most time consuming part was having a friend use his wood lathe to turn down two nylon barbed plumbing connectors so they slip fit into the ProVent inlet and outlet openings (which are tapered!) I superglued them in place. I mounted my filter directly in front of my airbox. I used two 3/4" 1/2" diameter pieces of aluminum tubing (cut with a tubing cutter) to form spacers to hold the filter behind the Air Conditioning liquid line that runs next to the radiator supporting cross member. Two 2" long hex head sheet metal screws were drilled horizontally toward the front into the radiator support member to the right of the windshield washer fill cap. You have to select which of the multiple grooves on the filter body you want engaged in the mounting bracket so the filter connectors and the filter height work to clear the hood and adjacent airbox and air hoses. I used 3 - 3/4" 90 degree barbed plastic fittings by Lasco to cleanly snake the inlet and outlet hoses around the front corner of the airbox and then the third one to drop the hose straight down onto the PCV to air stream inlet located on the inlet air hose. This made for minimal obstruction to the turbocharger outlet hose.You will need to modify the airbox. I hogged alot of the front of the housing away. Probably more than needed but the engine ain't in want of air flow and since I do not ford rivers with my daily driver I am not too concerned about it ingesting water. My original intent was to tie the ProVent drain to a hose coupled to the ProVent check valve and then "Y" it into the turbocharger drain line. That proved way more involved than I had time or patient for so I just drilled about a 1/4" hole in the top of a clear plastic screw cap container ( I used a medical specimen cup) and then forced the cap over the drain outlet of the ProVent. So now I have an easily accessible ProVent and outlet drain capture device intercepting the steady PCV flow. The drain collection holds about a 100ml's and after about two weeks of driving I can barely see any oil accumulation.The ProVent was available for less elsewhere but my gift card and Amazon Smile benefit to Drs. W/O Borders made the who to buy from decision easy. The jury is still out the performance of the ProVent but initial observations are promising.The vent would be more user friendly if they made available some transition adapters so smaller hoses could be fit to it.

Don't waste your time with cheap knockoffs. They are of inferior material. I know as I bought this and the knockoff, compared them and it was a no-brainer.This air/oil separator works quite well on my Colorado diesel, removing as much a 6 oz blowby oil every 6,000 mi so it doesn't foul the turbo or intake system.There are no instructions, but many on-line forums have good info for DIYers like me.

Works as advertised. It was kind of hard to find hoses locally that would fit. I ended up going to Home Depot after going to two separate parts stores and a hardware store. I was really surprised by how much moisture and oil comes out of my engine. I installed it on a 2005 Ford F-250 with the 6.0L diesel and it works fine.

I bought this to capture Crank Case Vent gas from my 6.4 Diesel. Woarms great, only complaint is the band is a little weak in for the tie in the back of it. It broke when I was intalling due to its small size. Other than that, it's doing its job

Price is right,worked great

Works well on my 7.3 powerstroke. Had to fab up a little bracket.

Was shipped extremely fast and the product is great. German quality product.

Would be nice if it came with some mounting hardware but it's excellent quality.