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JLT V3.0 Black Oil Separator - Driver Side (11-17 GT; 12-13 BOSS 302; 15-20 GT350)

Item 399753
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      Review & Installation Video

      Hey guys, Adam here with Today we're taking a look at and installing the JLT V3 oil separator for the driver side of all '11 to '17 GTs, '12 to '13 Boss 302s and '15 to '17 GT350s. You might be looking for an oil separator that'll stop engine sludge from hindering and bogging down your engine's performance while also reducing blow-by. If you're not familiar with what blow-by is, it's essentially crankcase exhaust gases making it to way back into the manifold bogging down your engine or even your supercharger if you've got some forced induction setups going on. Now this particular one is the V3, so it is an upgrade from the previous JLT versions. This one has a three ounce capacity which is almost double its previous versions. It's also CNC machined from a solid block of black billet aluminum. And as you can see, it's got a knurled texture on the bottom. So when you're doing that routine maintenance, you get a little grip on the catch can. It's got an easy unscrewable motion here to get that catch can off. Now we're upgrading from the Ford Motorcraft pre-filter to a half-inch thick one-sixteenths aluminum honeycomb filter, which is gonna help filter out those smaller vapor oils from slugging down your engine. Now, this is again gonna be a huge upgrade in the way of performance. It's really got a bunch of pros and virtually no cons. It's gonna help you slow down and reduce all that engine sludge from bogging down your motor and hindering your performance while also just being one of those really inexpensive mods coming in right around 180 bucks. The install for this is gonna be extremely simple, one out of three wrenches on our difficulty meter. Now we're gonna show you guys how to do this. So let's pop the hood open and get to it. All you need as far as tools is a Philips head screwdriver, a ratchet, and a 10 millimeter socket. All right. So installing our JLT oil separator is really as simple as removing this PCV hose here which is simple disconnects with hands, no hand tools required. The actual oil separator is gonna mount down here next to your strut tower. Now, we've got brackets to get this installed under this clip here which I'll show you in just a second. First off, we have to remove this hose, and that's where these hoses are gonna plug into. So, what we're gonna do is we're gonna pinch the one off of our intake tube, then we're gonna pinch the clip holding the other end to the valve cover. All right. For the intake tube side, all we have to do is squeeze our hand under here, pinch the gray tab back, and pull the hose off of the tubing. For the opposite side here, we're gonna push down on the gray tab and pull backward on our hose. Now you might have to rotate it to get access to that gray tab. But once you do rotate it, pinch and pull off. For the JLT oil separator here, we're gonna use our longer hose of the two to go straight back over to our intake tube. We're gonna bend that longer tube back over to our intake tube and just click it into the stock location. For the opposite side, we're gonna take the shorter hose and attach it to the valve cover. We can push down our hoses to get the JLT oil separator where we want it. This is about where it's gonna mount. So let's attach the brackets. So in order to mount our oil separator to our strut tower here, we're gonna use this clamp bracket. The clamp bracket is gonna go right around this extremity piece here. Now we're gonna use our 10 millimeter socket and ratchet to tighten up the bolt head from the bottom to get it to clamp on. Next up we're gonna attach the JLT extension bracket to that clamp here. Now, there's two holes. There's a larger hole and a smaller one. The smaller one is actually pre-threaded, which we're gonna bolt down our 10 millimeter to. So we're gonna take this bracket and bolt it down to that pre-threaded smaller hole. At this point, you can make the adjustments as necessary to mount it where you need to. I'm gonna put it right about there, looks like a good spot for it. All right. So at this point, we're gonna rotate our JLT oil separator to match the pre-drilled holes in the cap here with the bracket. A Phillips head screw supplied in the kit here that we're gonna use to bolt this down to our bracket. There's also another alternative for installing this. Now, if you're not really interested in going the clamp bracket route like we did, which is an impermanent solution, you can go to the more permanent route and actually drill into the same mounting location on your strut tower. Now, there's a nut provided in the kit for you. You can bypass that whole clamp and just use this bracket directly. Drill it into your strut tower extension and use this nut on the other side to tighten it down. That would be a little more secure, a little more permanent, whereas the clamp lets you remove it at any point. So that's gonna wrap up my review and install of the JLT V3 oil separator for the driver side of all '11 of '17 GTs, '12 to '13 Boss 302s, and finally '15 to '17 Shelby GT350s. This particular oil separator is finished in black, but there's also an aluminized option as well, both of which you can find at

      Product Information

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


      • Eliminates Blow-By and Engine Sludge
      • Improved Version 3.0 With 3oz Capacity
      • Solid Billet Aluminum Construction
      • Honeycomb Designed Filter With Intricate Fine Mesh System
      • Durable Black Anodized Finish
      • Quick and Simple Installation
      • Passenger PCV Side Kit
      • Limited Lifetime Warranty
      • Fits 2011-2017 GT, 2012-2013 BOSS and 2015-2020 GT350 Mustangs


      Eliminates Engine Sludge. Install the JLT 3.0 Black Oil Separator today to achieve sustained maximum engine performance from your Mustang. This separator prevents blow-by from circulating back into your PCV system where it can gum the engine, coat the inside of the intake manifold and the throttle body and rob you of your engine power and performance.

      Improved Version 3.0. As an improvement to the preceding model, this version features a larger 3 oz capacity of fluid retention – double capacity. It also uses the more efficient 1/2" thick 1/16” aluminum honeycomb filter with a mesh stainless steel screen that traps finer oil vapors more effectively.

      Durable Construction. Made from CNC machined solid billet aluminum, the JLT Version 3.0 Black Oil Separator features a rubber O-ring to provide a tight, leak-free seal. Additionally, oil change is made easy with the knurled bottom for easy removal. It is completed with a corrosion resistant aggressive-looking black anodized finish for durability.

      Installation. Comes as a complete kit containing two PCV lines with easy quick-disconnect fittings that facilitate a plug-and-play installation in 10 minutes with no modifications.

      Warranty. JLT provides a limited lifetime warranty on this Black Oil Separator against material and craftsmanship flaws.

      Not CARB Certified. This Oil Separator is not legal in California and states with similar emission policies.

      Application. JLT Version 3.0 Black Oil Separator is compatible with 2011-2017 GT, 2012-2013 BOSS and 2015-2020 GT350 Mustangs.

      Fitment: 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Details

      MPN# 3011D-B

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (33)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 33 customers

      • January 17, 2020

        5 2017 GT - Brad082781

        Good fix to a problem.

        Easy install. I have a 2017 mustang GT. Luckily I didnt have to drill a hole on the tab by the shock mount like the instructions said, it was pre drilled. So, I realized I needed them when I found my engine a quart low on oil but couldnt find a leak. If you are like me and shift at 6500 rpm every shift when your wife's not in the car while driving in the mountains. This is a good fix.

        Helpful (0)
      • November 26, 2019

        5 2016 GT - ElevenBanger

        Perfect fit keep it clean

        Materials are very nicely matched. Metal and rubber of greater quality than random brands. Perfectly fits in my engine bay with other competing mods for space.

        Helpful (0)
      • August 25, 2019

        4 2016 GT - RThrasher

        Good quality

        Nice product. Fits well and easy install. Only improvement I would add is a little larger capacity with a drain in the bottom.

        Helpful (0)
      • June 28, 2019

        3 2014 GT - 5150krazy

        black oil separator

        the video they have on it is a joke were they show were to hang it the lines wont reach the cold air intake I have (BBK BLACKOUT) it needs some modification like four screw holes on top swivel connection to route the hoses easier longer hoses and the mounting bracket longer. installed in a 2014 mustang GT premium. photo coming soon

        Helpful (0)
      • June 23, 2019

        5 2011 GT - MattKY

        Oil separator Driver Side

        Easy install comes with quality materials and does what it’s supposed to. Highly recommend

        Helpful (0)
      • May 31, 2019

        5 2013 GT - ChristopherJ

        Perfect fit

        The install was easy and quick! Looks great! I would recommend this mod to everyone who wants to add something under the hood

        Helpful (0)
      • May 21, 2019

        5 2016 GT - Gttt

        Great product

        Easy install great quality parts comes with everything needed for mounting. Highly recommend.

        Helpful (0)
      • May 09, 2019

        4 2014 GT - gtcs

        Jlt oil separator

        Went on easy and fast just wish the hoses weren’t so long and is a little pricey

        Helpful (0)
      • May 02, 2019

        5 2019 GT350 - John

        2019 Gt350

        Absolute must for this car. Easy install and will keep you appraised of any funkiness your car might have.

        Helpful (0)
      • April 28, 2019

        5 2017 GT - KevinS

        Excellent Protection

        I have both the passenger and driver side catch can from JLT. I just wanted the additional peace of mind that my throttlebody and intake was not going to get all gummed up with oil. Installation was very easy in part to me having the ford performance power-pack stage two which has the Shelby GT 350 intake and throttlebody freeing up room on the driver side engine bay. At first the hoses are a little confusing but you will quickly figure out the one way they can go in. The bracket simply bolts on. After just 200 miles I can see just a little bit of oil on the driver side and a lot more on the passenger side. If you want to do it right simply buy catch cans for both engine banks.

        Helpful (2)

      Questions & Answers (13 answers)

      5 Top Rated Questions

      So this comes in either drivers or passengers side, if you install one on one side, why would you not install one on the other side? Seems short sighted to only install on one head, right? To me install on both sides or not at all. ??? If I don't understand something please educate me. Thanks.

      • The JLT V3.0 Black Oil Separator is available for either side, and both can be installed together. This is offered as either side, as the majority of oil pulled into the PCV system on the 5.0L comes from the passenger side, however some people prefer to install on both sides.

      Helpful (6)

      hi will this work with a rough supercharger?

      • The JLT V3.0 Black Oil Separator will not be compatible with the Roush Supercharger.

      Helpful (2)

      I recently installed a JLT oil separator on both sides of my engine. The passenger side collects oil (1/2 a can every 2 weeks). The driver side is bone dry, not even a film or residue to be found. I have been running these for over a month now. Before I installed I was getting oil back through my intake. I checked my intake and looks like no oil is coming through with the separator installed. Is it common to not be collecting oil on the driver side?

      • It is more common on the coyotes to have more blow-by on the passenger side than on the driver side.

      Helpful (1)

      Are bot oil separators compatible with the Cobra Jet intake manifold and JLT cold air intake?

      • Both the passenger and driver side separators can be used, however slight adjustments to the lines and mounting brackets may be required.

      Helpful (1)

      Does driver side install impede access to oil dip stick?

      • This would not impede access to the oil dip stick.

      Helpful (0)
      Post Your Question
      8 More Questions
      Will this work with a PROCHARGER? Thanks 1 answer
      Does this fit with a procharger? 1 answer
      Will it fit with on a whipple supercharger ? and is the hose long enough to reach the bottom of the whipple intake tube ? 1 answer
      Does this work with a PMAS intake on a 17 GT car? 1 answer
      Will this void the factory warranty? 1 answer
      Does this part # work on both sides of the engine? 1 answer
      i have a 2017 mustang gt with a roush supercharger on it. I see the passenger side oil separator that will work with the supercharger but can not find a drivers side oil separator that will work with the supercharger is there one? or do people only install the passenger side oil separator if they have a supercharger? 1 answer
      I read a question and answer about this product fitting a Rousch Supercharger and the answer was no it will not fit. My question is will it fit a VPM Stage II Supercharger with a JLT cold air intake? Thank you 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Black Oil Separator
      • Installation Hardware

      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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