Sponsored

Oil catch can - feedback?

Kevin_D

Well-Known Member
First Name
Kevin
Joined
Oct 18, 2020
Threads
54
Messages
2,382
Reaction score
3,200
Location
Inland Northwest
Vehicle(s)
2021 Sport S, 1971 J4000, a bunch of other stuff
Good question. It's safe to say we have no plans for a 2.0 JL or Jl/JT Eco Diesel kit due to those engine designs having a different PCV valve mounting location. The main issue with the 3.6 PCV location is being on the back of the valve cover at large inclines and angles the oil can flow to and into the PCV system, and thus get sucked into the intake, which is what our kit prevents from happening. Since the Eco Diesel and 2.0 have different PCV locations, the oil draw issue through the PCV system isn't an issue.
This is from a catch-can manufacturer. Under these conditions, it’s a benefit. Otherwise, not so much…

Kevin
Sponsored

 

mrmo

Well-Known Member
First Name
Mrmo
Joined
Jan 26, 2021
Threads
56
Messages
863
Reaction score
544
Location
East Tn
Vehicle(s)
2022 Gladiator
Occupation
nuke
I dont care what the nay-sayers say, I have one on every vehicle I own, they work, and my Glad diesel will have one soon
 

rharr

Well-Known Member
Joined
May 6, 2021
Threads
29
Messages
2,026
Reaction score
2,772
Location
Tucson, AZ
Vehicle(s)
21 JTRD 3" RKK lift, (former) 95 XJ 5sp 8" lift
I dont care what the nay-sayers say, I have one on every vehicle I own, they work, and my Glad diesel will have one soon
Keep us oil burners posted on how it works out.
 

mrmo

Well-Known Member
First Name
Mrmo
Joined
Jan 26, 2021
Threads
56
Messages
863
Reaction score
544
Location
East Tn
Vehicle(s)
2022 Gladiator
Occupation
nuke
Im looking at several. I think the Mishimoto one is too high in price, although it looks like a well thought out system. I may end up back in that direction after its all said and done. I like the baffled cans with a sintered bronze phase separator. A very fine mesh screen sometimes works. I will keep it up to date when I get things lined up
 

Sponsored

mrmo

Well-Known Member
First Name
Mrmo
Joined
Jan 26, 2021
Threads
56
Messages
863
Reaction score
544
Location
East Tn
Vehicle(s)
2022 Gladiator
Occupation
nuke
The JLT group has several also. You are going to have to mount and fabricate some things as I dont see any 3.0 stuff or kits out there. It a matter of attaching hoses and the can. I want to use the same type hose attachment as the factory uses so it may be a hybrid of factory and aftermarket parts
 

skadax

Well-Known Member
First Name
Sumeet
Joined
Apr 27, 2023
Threads
1
Messages
51
Reaction score
91
Location
Phoenix, AZ
Vehicle(s)
2020 Jeep Gladiator Rubicon
I installed the Mishimoto can on my 3.6L 2020 JTR about 3 weeks ago. Very easy install and the drain hose and stopcock make it very easy to empty. I’ve driven about 500 miles in that time. This morning I emptied about 1/2 ounce. Maybe this is all for naught and maybe too little too late (as my engine has about 55,000 miles on it), but I figured it can’t hurt.

Jeep Gladiator Oil catch can - feedback? IMG_2709
 

guardrail

Member
First Name
Earl
Joined
Jun 20, 2024
Threads
1
Messages
15
Reaction score
5
Location
Greenwood SC
Vehicle(s)
2017 Ford Flex Limited
Occupation
Retired
I have the JLT performance on both of our cars, which are turbocharged V6 Ford Flexes. They are great and I just empty them each time the oil is changed.

The Jeep version is here

Search Result (jlosc.com)
 

Sponsored

hjdca

Well-Known Member
Joined
Oct 27, 2019
Threads
9
Messages
1,733
Reaction score
2,494
Location
Southern California Mountains
Vehicle(s)
Jeep Gladiator Rubicon manual Sting Gray
Build Thread
Link
Curious since the only replies are those that have spent money on a catch can and the ones trying to justify installing one. Has anyone have say over 60000 miles on their gladiator without a catch can and if so are you seeing and negative effects such as crusted intake that has to have been cleaned or similar
Yes, I started getting EGR errors around 60K miles, and I replaced the EGR and the EGR sensor. The sensor especially had some carbon crud on it. My PCV line did have oil in it. I was not burning oil, about 1/4 of a quart every 3.5K or 4K miles. I did install the Mishimoto catch can, and i really like it. Especially, how easy it is to drain the can with the built in drain hose. I get a 1 or 2 ounces of oil every 1500 miles or so. There is a TSB out on our PCV valve for carbon build up. There is an updated part number for a new PCV. You might want to try that. For some reason this new PCV is $120 vs. the old PCV being $30.... lol... Note: I am assuming the new PCV will have a tighter spring which in turn will create a little more crank pressure before releasing pressure to the hose... I decided to stick with the old PCV and go with the catch can, since, I do not want to suddently get oil leaks from my gaskets, ie. due to more crank case pressure... ... I am attaching the TSB with the Part numbers, so, you can read it.

Jeep Gladiator Oil catch can - feedback? TSB_Carbon_Buildup_pg1

Jeep Gladiator Oil catch can - feedback? TSB_Carbon_Buildup_pg2


Jeep Gladiator Oil catch can - feedback? TSB_Carbon_Buildup_pg3
 
Last edited:

Maximus Gladius

Well-Known Member
First Name
Kevin
Joined
Jan 30, 2021
Threads
74
Messages
2,901
Reaction score
3,692
Location
Calgary, AB, Canada
Vehicle(s)
2021 JTR, 2023 JTR
So here’s a question I have. How many PCV valves do we have on the JT 3.6? Now, before a bunch of you jump on me to state to obvious because I’ve read and heard everyone only talk about the need to install one catch can and we all have that one PCV valve at the back corner of the engine on the passenger side,… did we know that the crankcase return air hose that enters the intake tube right after the air box isn’t attached to that PCV valve at the passenger side? It actually routes to that corner but then runs along the back side to “something” on the driver’s side rear engine corner.

The PCV valve on the passenger side routes over top of the intake manifold and plugs itself into the intake manifold AFTER the throttle body. So, (hiking my pants down here) I NEVER knew the passenger side PCV hose plugged into the intake after the throttle body and I confidently assumed and speculated that it’s hose plugged into the intake tube after the air box. So now that I just discovered this by installing my catch can and I am now self enlightened, am I to now put a splitter in the hose to add the hose going into the intake tube?

Here’s been my line of thinking all these months since getting my second engine back in Sept/Oct 2022 with 12L of oil installed and after my immediate 1567 kms with it, I did my first oil change and took off the air box to see the intake tube was overflowing with oil from the hose entering the tube after the air box. I assumed the PCV at the passenger back corner of the engine was the valve sending it there, but now I see I was wrong. So what’s at the back corner of the engine on the driver’s side and does that hose need a catch can too?
 

Maximus Gladius

Well-Known Member
First Name
Kevin
Joined
Jan 30, 2021
Threads
74
Messages
2,901
Reaction score
3,692
Location
Calgary, AB, Canada
Vehicle(s)
2021 JTR, 2023 JTR
I’m proud to say I performed the PCV test as outlined. I have one question concerning the MUA (make up air, fresh air IN) hose connection at the intake tube just past the air box. If air is being drawn IN toward the engine crankcase, why and how does oil travel away from the engine to seep, drip or pool down into the air tube to kind of pool around the tube pleats? (where it connects to the air box)

There is also somewhat of an elevation drop from where the MUA tube is connected to the intake tube (higher) and where it enters the drivers side rear valve cover (lower).
Sponsored

 
 







Top