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J&L 3.0 Oil Separator; Black Anodized; Passenger Side (11-17 Mustang GT; 12-13 Mustang BOSS 302; 15-20 Mustang GT350)

Item 393754
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      Video Review & Installation

      Justin: You should be checking out the Passenger Side J&L Oil Separator for your 2011 through 2017 5-Liter, or your 2015 through 2020 GT350, if you're looking to help capture the oily vapors produced by combustion, from being reintroduced or rerouted back into your intake manifold, and basically just dirtying up your engine in the process.Now, construction from the J&L here is gonna consist of the American-made black billet aluminum canister, along with your factory-style hoses and fittings all for right around that high $100 price point. Install, guys, gonna get a very soft one out of three wrenches on the difficulty meter here, thanks to the 100% plug-and-play design. So, therefore, figure about 10 minutes of your time or less to complete from start to finish, as we'll show you later in the video.So I'm sure most of you guys know, but if not, your Mustang has what is called a PCV system, and that's short for positive crankcase ventilation. Now, the purpose of this system is to help regulate and ultimately remove fumes produced during combustion from the engine crankcase to help alleviate that crankcase pressure, which if not addressed could lead to things like oil leaks or seal damage.Now, because laws do mandate that the PCV system be sealed, the engine has to use vacuum to draw these vapors out of the crankcase and then plumb them back into the intake track, where they are to be burned off during the next combustion cycle. And while that all sounds good, in theory, a lot of times these oily vapors end up leaving residue on the intake manifold and even on the backside of your intake valves, which can lead to things like fuel dilution, misfires, or even deposits on those valves over the years.And that's where the J&L separator comes into play. Now, that oily vapor is going to pass through your Mustang's PCV system and into the separator itself here. Now, at that point, the solids present in this vapor, basically, all those tiny little particles of oil and unburned fuel, whatever else is gonna get caught in the aluminum honeycomb and stainless steel mesh material up top, and then collect in your canister here down below, while still allowing that fresh, clean air to pass through your PCV system as intended from the factory.Now, J&L claims checking and emptying the canister every few thousand miles is certainly a good idea. And from my experience with these things, guys, you might be surprised in just how quickly they fill up due to your weather conditions, the condition of your engine, and so forth. So, basically, my point is here, check it a few times per oil change interval, and then make sure you're emptying it responsibly when it does come time to emptying this thing out.Now, as far as your construction is concerned here, guys, well, you're looking at a simple black billet aluminum canister with a neural bottom. Three ounces is your capacity here, hence the 3.0 name. And just a quick heads up, guys. If you're not really digging the black, maybe stealthy look you want something to pop under the hood a little bit more, well, you're in luck because J&L does also make this a satin and silver finish as well.Now, this is a J&L oil separator, guys, formally known as JLT. Yes, they did recently change up the name a little bit, but it's the same great quality you guys all know and love and come to expect from the company over the years.Last but not least, guys, this is the Mustang-specific kit here, of course. So you are gonna find your factory-style lines and fittings, which is gonna make for a very easy install on a very factory-like fit. And it is backed by a limited lifetime warranty, just in case you ever run into any issues.But what do you say we switch gears here, guys, and get into the installation process. And again, very, very straightforward as that one out of three wrench rating would otherwise indicate. Site calls it about 10 minutes to complete from start to finish, probably can bang this one out even quicker than that, because you are literally unplugging your factory PCV line and plugging in the J&L in reverse order.There's no brackets to mess with, there's nothing like that. It literally is just gonna sit in place and be very simple, thanks to that plug-and-play design. But to give you a better idea of just how exactly things are gonna go down, on your 5-liter or 5.2 at home, feel free to check out our detailed walkthrough now.Man: Hi, everyone. Today, we're gonna install an oil separator on our 2015 Mustang. So, let's get started. Okay. So we've already opened up our hood, our next step is gonna be to remove the engine cover, which is a simple lift and remove process. And by the way, there are no tools necessary for this install.Okay, our first step is remove the engine cover, which is a simple lift and remove process. Our next step is to remove our PCV hose, which is located right here at the front of the engine. And in order to do that, we've got two clips, one on each end with a gray tab on it. All you have to do is pull that gray tab towards you and lift up on the hose. Just repeat the process now for the other end.So now we're ready to install our oil separator, and it's going to install with the same style of clips that were on our PVC pipe. And here's the other connection, just clip that on. Now, we can reinstall our engine cover, and that will complete our process.Okay. That'll wrap it up for our review and install of our J&L 3.0 Oil Separator in the Black Anodized finish for the Passenger Side on your '11 to '17 GT, '12 to '13 BOSS 302, and '15 to '20 GT350. Thanks for watching. And for all things Mustang, keep it right here on

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Reduces Blow-By and Engine Sludge
      • Version 3.0 - 3 oz Capacity
      • Aluminum Honeycomb Filter with Fine Mesh Screen
      • Solid Billet Aluminum Construction
      • Black Anodized Finish
      • Easy Plug-And-Play Installation
      • Passengers Side (PCV Side) Kit
      • Includes New PCV Line with Quick Connect Fittings
      • Fits 2011-2017 GT, 2012-2013 BOSS and 2015-2020 GT350 Mustangs


      Reduces Engine Sludge. Prevent engine sludge from impeding the power and performance of your Mustang. Installing a J&L Version 3.0 Air/Oil Separator will prevent crankcase exhaust, better known as blow-by (an oily vapor), from re-circulated back through your PCV system and intake. If left unchecked this oily vapor can solidify becoming engine sludge. This nasty sludge can coat the inside of your throttle body and intake manifold robbing you of power. A J&L 3.0 Separator is an ideal upgrade for all Mustangs that want to reduce engine sludge in order to maintain power and performance.

      Version 3.0. J&L improved on the designed of their old Oil Separator with the introduction of their new and improved Version 3.0. The first big change you will notice is that the Version 3.0 Separator has a larger 3 oz capacity, that is almost double that of their previous model. Another important difference is the filter media. Older J&L Separators used a Ford Motorcraft pre-filter, but now J&L uses a 1/2" thick 1/16th" aluminum honeycomb filter with a mesh stainless steel screen to trap even more fine oil vapors than before to prevent them from gumming up your engine.

      Superior Quality. This J&L Oil Separator Company Air/Oil Separator is proudly manufactured right here in the USA. J&L CNC-machines their Air/Oil Separator from a solid block of billet aluminum for superior strength. Designed with a rubber o-ring, this Separator will maintain a tight leak-free seal. The base features a knurled texture, so that it can easily be gripped for removal during routine oil changes. J&L then completes their Catch Can in a durable black anodized finish for aggressive good looks and long lasting corrosion resistance.

      Easy Installation. J&L Oil Separator Company engineered their Separator to be installed in under 10 minutes with just basic hand tools. This kit comes complete and includes two PCV lines with stock-style quick-disconnect fittings that allow for an easy plug-and-play installation. All the necessary parts are included, with no cutting or extra modifications required.

      Application. This J&L Oil Separator Company Version 3.0 Black Passenger Side Air/Oil Separator is designed for use on 2011-2017 GT, 2012-2013 BOSS and 2015-2020 Shelby GT350/GT350R models. Installs on the passenger side, same side as the PCV valve.

      Technical Note. This J&L Air/Oil Separator is not CARB certified, therefore it is not legal for use in California or other states adopting California emission standards. It is intended for off-road use only.



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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Oil Separator

      Customer Reviews (500+)

        Questions & Answers

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        Will It Fit My Mustang

        • Boss 302 - 12, 13
        • GT - 11, 12, 13, 14, 15, 16, 17
        • GT350 - 15, 16, 17, 18, 19, 20
        • GT350R - 15, 16, 17, 18, 19, 20

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