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

Item 393754
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      Review & Installation Video

      Hey, what's going on, guys? Adam here with Today I'm bringing you a quick overview of the JLT 3.0 Oil Separator in your choice of either black or anodized, fitting all '11 to '17 GTs, '12 to '13 Boss 302s and '15 to '17 GT350s. So in this video, I'll be talking about the functionality of an oil separator, as well as its materials and construction. Toward the end, I'll even talk you through the installation process, which I'll tell you up front will get a very, very simple one-out-of-three wrenches on our difficulty meter. Let's jump right into it.The JLT 3.0 Oil Separator is gonna be for the '11 to '17 GT, the '12 to '13 Boss 302 or the '15 to '17 GT350 owner out there looking to pick up a part to reduce and actually prevent engine sludge from bogging down your engine's performance, all at the same time reducing blowby. Now if you're not entirely familiar with what an oil separator, otherwise known as a catch can, is or does, let me explain it to you in a nutshell. An oil separator can actually stop and help prevent oil sludge from robbing your engine of performance, as well as reduce blowby, which is essentially crankcase exhaust gases that escape into your intake manifold, robbing performance as well or if you're running a forced induction system, maybe even your supercharger. Now JLT has gracefully provided us with oil filters in the past which of course have gotten great reviews. However they've now upgraded to this new 3.0 version, which has a lot of upgraded features from the previous versions they've offered and also the other options on the market. This particular one comes with a three-ounce capacity, which is almost double what they've offered in the past. They've also upgraded their pre-filter, which before was using a Ford Motorcraft pre-filter. Now they've gone up to a half-inch thick one-sixth aluminum honeycomb filter with a stainless steel screen to help prevent even more oil vapors from gumming up your engine. Overall this thing offers a ton of pros and virtually no cons. Now to further elaborate on the materials and construction here, this one was manufactured right here in the USA and I've actually got one taken apart for you so you can see the stainless steel honeycomb backing here with the filter filtering down into the three-ounce capacity bottle. Now it all really just comes off with a simple screw of a top. Now with that said, this was all CNC machined out of a solid block of billet aluminum for superior strength, comes with a rubber O-ring for a leak-free seal, has a knurled, textured bottom here to actually give you grip while doing routine oil changes when you're taking this thing off here and obviously comes with your choice of either the durable black or the anodized finish to fit any preference.Now in my personal opinion, there is absolutely no reason why any of the aforementioned Mustang owners out there shouldn't pick this part up because it does nothing but good under your hood. You can expect to be picking it up for just about 140 bucks and again there are absolutely no cons, but a crap-load of pros. Now as far as the installation goes, guys, you won't even need any tools to get the job done. All you'll have to do is simply unplug the factory hose, replace it with the JLT 3.0 Oil Separator with its quick plug-in connectors here and you'll be good to go. Simply should take you just a minute or two to get the job done. I will absolutely be giving this one a one-out-of-three wrenches on our difficulty meter. Something easy enough for any novice to take care of. Well, just to wrap things up here, if you're the owner of an '11 to '17 GT, '12 to '13 Boss 302 or '15 to '17 GT350, you might wanna check out the JLT 3.0 Oil Separator in your choice of either black or anodized to help reduce engine sludge and prevent blowby, which of course they're both available right here at

      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 JLT 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 JLT 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. JLT 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 JLT Separators used a Ford Motorcraft pre-filter, but now JLT 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 JLT Performance Air/Oil Separator is proudly manufactured right here in the USA. JLT 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. JLT then completes their Catch Can in a durable black anodized finish for aggressive good looks and long lasting corrosion resistance.

      Easy Installation. JLT Performance 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 JLT Performance 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 JLT 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.

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

      MPN# 3011P-B

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 100+ customers

      • February 16, 2020

        5 2012 GT - Tominkc

        JLT V3.0 Oil Separator!!

        Very pleased, stops the oil being sucked into my Boss Intake, makes car run so much better with out the oil fouling my plugs!!

        Helpful (0)
      • February 07, 2020

        5 2017 GT - Hooligan

        Great Product

        Took literally 2 seconds to install. Catched alot in the first 1000 miles

        Helpful (0)
      • January 31, 2020

        4 2011 GT - Michael

        Happy with it.

        Fits a little tight on my car, lines could of been longer..All in all I'm happy with it.

        Helpful (0)
      • January 27, 2020

        5 2014 GT - SkipW

        JLT oil separator

        Install was super easy, have not had a chance to open it up to check to see if it’s working but it gives me peace of mind the PCV valve is gone and not letting oil back into the throttle body and manifold.

        Helpful (0)
      • January 26, 2020

        5 2012 GT - BryanM

        2012 mustang

        Don’t have much to say about it since I’ve only had it for a month but my buddy with same car has it and has had it for a while and he’s never said anything bad about it so I decided to get one

        Helpful (0)
      • January 21, 2020

        5 2017 GT - Lobodog

        Oil Separator

        This was an easy part to install and looks sharp in the engine bay

        Helpful (0)
      • January 20, 2020

        5 2017 GT - Bryan

        Perfect Fit

        When I first got it out of the box, I thought the connectors were twisted at an odd angle. Turns out they were turned EXACTLY as they should be. It was a perfect fit and took literally two-three minutes including opening and closing the hood. The knurled bottom of the can makes it easy to twist off and replace without removing it from the car.

        Helpful (0)
      • December 25, 2019

        5 2017 GT - Drtyst8ng92

        good quality

        good quality part can't wait to install and dyno tune with all bolt on"s

        Helpful (0)
      • December 22, 2019

        5 2012 GT - baytoys

        Should have came stock

        Does exactly what it's supposed to keep all of that sludge in the canister and not your engine took only about 5 minutes to install fits perfectly the way it's supposed to Plug and play thanks AM and JLT

        Helpful (0)
      • December 21, 2019

        5 2016 GT - ElChingon


        Super easy to install, you can take the engine cover off without taking off the strut bar across to install. Does it’s job and looks good under engine bay

        Helpful (0)

      Questions & Answers (31 answers)

      5 Top Rated Questions

      Since the passenger side gets most of the vacuum, would it be OK to just install the passenger side separator and block the line on the driver's side?

      • Yes, you can definitely just install the passenger side oil separator on your Mustang to prevent sludge from getting in the engine.

      Helpful (6)

      Does the can just hang there or is it actually mounted to something? I don't want something flopping around or banging into something else while I drive.

      • It does not have mounts except for the two hoses that connect to the engine itself. You shouldn't have any issues with it bouncing around. I've had one on my 2012 GT for years and have yet to have a single issue with it.

      Helpful (4)

      I already own this oil separator prior to supercharging my 2013 GT. Does anyone know how to add this to my 624HP Ford Racing Supercharger kit? Are there hoses and connectors that I can replace without cutting the hoses provided with the kit to use this oil separator?

      • JLT does offer a set of conversion lines to be used with the 624HP when using Roush, VMP and Whipple Superchargers. As the Ford Performance kit does utilize a Whipple 2.3L Blower, this should be compatible with your setup, though we do recommend verifying this with JLT. At this time we do not offer this kit, however JLT's part number is 3011PCK-3020P and this is available directly through JLT.

      Helpful (2)

      I just received the JLT 3.0 Oil Separator and my questions is regarding the right side hose/intake side. Is the hose on the intake side (the one with the FoMoCo label) supposed to be or have a flat side. Meaning, the hose is not exactly round where the bend occurs near the label?

      • There will be a flat section in the hosing due to the bend.

      Helpful (1)

      Do you offer this black version with a clear anodized bottom cup? Easier to see and evaluate oil in the clear bottom cup but the black top blends in better in the engine compartment. Don't want to buy both colors and swap.

      • Unfortunately, the JLT V3.0 Black Oil Separator is not available with a clear bottom half.

      Helpful (1)
      10 More Questions
      G'day, Can this be set-up to both heads (L/R) to manage to whole engine with one unit? 1 answer
      How much oil would be removed from the engine with this.. would'nt that oil have to be replaced? 1 answer
      At any point along the way does it get loose and fall out? 1 answer
      Theoretically speaking, since this product captures oil sludge, could you to go longer without an oil change? 1 answer
      Will this work with a procharger stage 2? 1 answer
      Would this void a Ford extended warranty? 1 answer
      Will this fit 2018mustang gt 1 answer
      I wanted to know if these would work with a 6466 precision single turbo setup? 1 answer
      I bought 2014 mustang GT, and i want to buy the jlt oil seprator, what your recomandation buy one side or better to buy for both sides???? 1 answer
      Will this work with a Paxton Supercharger? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Oil Separator

      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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