How to eliminate oil filter adapter on Renix 4.0?
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
When a kid with my first car I went on a oil filter trip.. I would take apart all kinds of oil filters.. It was easy. I was the kid changing oil at the shop I worked. So I have opened enough filters looking at different makes trying to find the best.. Well its all about the silicone vale and where the high pressure bypass valve is located.. The best filter I have found that have both valves in the best location is WIX and Motocraft.
Last edited by Dumajones; Oct 24, 2017 at 11:00 PM.
Just a little vid I made on why I dislike Fram filters.
I talk about the anti drain back vales in it and show hard one from a good silicone one.
https://www.youtube.com/watch?v=Lny2yNBy15c
I talk about the anti drain back vales in it and show hard one from a good silicone one.
https://www.youtube.com/watch?v=Lny2yNBy15c
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
Know what? sometimes curiosity just hits you and you just have to KNOW. That is where I am at right now with my lifter rattle trip on these things...
Thread Starter
Senior Member
Joined: Nov 2014
Posts: 603
Likes: 1
From: Hacienda Heights
Year: 1990
Model: Cherokee
Engine: 4.0
I added suppressor to my "top of the line Fram" statement as an indication of what I really think of them. They might work ok on the end of a barrel to reduce hearing damage but that's the only reason I'd buy one short of an emergency.
On my '90 I tried Wix and one other that I trust, probably a Puralotor Pure One or Motorcraft, don't recall which but I believe they're the same thing minus the paint. Both of those and whatever's on it now and waterer was on it before I bought it all drained. There aren't a lot of upside down filters on engines but I don't recall one that didn't drain. That said, I don't know any connection between upside down filters and shortened engine life other than knowing that it can't help to have delayed oil pressure. Filter drain-back is the reason I've avoided using oversized filters on the Renix, it'll take longer to re-fill.
On my '90 I tried Wix and one other that I trust, probably a Puralotor Pure One or Motorcraft, don't recall which but I believe they're the same thing minus the paint. Both of those and whatever's on it now and waterer was on it before I bought it all drained. There aren't a lot of upside down filters on engines but I don't recall one that didn't drain. That said, I don't know any connection between upside down filters and shortened engine life other than knowing that it can't help to have delayed oil pressure. Filter drain-back is the reason I've avoided using oversized filters on the Renix, it'll take longer to re-fill.
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
I added suppressor to my "top of the line Fram" statement as an indication of what I really think of them. They might work ok on the end of a barrel to reduce hearing damage but that's the only reason I'd buy one short of an emergency.
On my '90 I tried Wix and one other that I trust, probably a Puralotor Pure One or Motorcraft, don't recall which but I believe they're the same thing minus the paint. Both of those and whatever's on it now and waterer was on it before I bought it all drained. There aren't a lot of upside down filters on engines but I don't recall one that didn't drain. That said, I don't know any connection between upside down filters and shortened engine life other than knowing that it can't help to have delayed oil pressure. Filter drain-back is the reason I've avoided using oversized filters on the Renix, it'll take longer to re-fill.
On my '90 I tried Wix and one other that I trust, probably a Puralotor Pure One or Motorcraft, don't recall which but I believe they're the same thing minus the paint. Both of those and whatever's on it now and waterer was on it before I bought it all drained. There aren't a lot of upside down filters on engines but I don't recall one that didn't drain. That said, I don't know any connection between upside down filters and shortened engine life other than knowing that it can't help to have delayed oil pressure. Filter drain-back is the reason I've avoided using oversized filters on the Renix, it'll take longer to re-fill.
I added suppressor to my "top of the line Fram" statement as an indication of what I really think of them. They might work ok on the end of a barrel to reduce hearing damage but that's the only reason I'd buy one short of an emergency.
On my '90 I tried Wix and one other that I trust, probably a Puralotor Pure One or Motorcraft, don't recall which but I believe they're the same thing minus the paint. Both of those and whatever's on it now and waterer was on it before I bought it all drained. There aren't a lot of upside down filters on engines but I don't recall one that didn't drain. That said, I don't know any connection between upside down filters and shortened engine life other than knowing that it can't help to have delayed oil pressure. Filter drain-back is the reason I've avoided using oversized filters on the Renix, it'll take longer to re-fill.
On my '90 I tried Wix and one other that I trust, probably a Puralotor Pure One or Motorcraft, don't recall which but I believe they're the same thing minus the paint. Both of those and whatever's on it now and waterer was on it before I bought it all drained. There aren't a lot of upside down filters on engines but I don't recall one that didn't drain. That said, I don't know any connection between upside down filters and shortened engine life other than knowing that it can't help to have delayed oil pressure. Filter drain-back is the reason I've avoided using oversized filters on the Renix, it'll take longer to re-fill.
Moderator CF K9-unit
Joined: Apr 2012
Posts: 5,842
Likes: 12
From: Alaska
Year: 2000 sport
Model: Cherokee (XJ)
Engine: New 4.0l from s&j engines
Also the screen,,Thats Frams attempt to stop things getting in the motor from wash over. Instead of changing the location of the high pressure valve on their high end filters. they just keep the same old design and put more filter media and a screen lol.. Yeah Fram that's really high end
Thread Starter
Senior Member
Joined: Nov 2014
Posts: 603
Likes: 1
From: Hacienda Heights
Year: 1990
Model: Cherokee
Engine: 4.0
Check your oil after shut down as normal then again in the morning and see if it went way up, mine does. When I do my Renix oil changes I generally drain the oil hot and wait a few hours or overnight to pull the filter so it's empty and doesn't spill all over. If yours stay full then maybe it's something else going on with mine, every filter I've used seems to drain back. Maybe I have a bad o-ring in the adapter allowing the drain-back.
Its dissolves real fast when you play with it. But its super sticky.
Also the screen,,Thats Frams attempt to stop things getting in the motor from wash over. Instead of changing the location of the high pressure valve on their high end filters. they just keep the same old design and put more filter media and a screen lol.. Yeah Fram that's really high end
Also the screen,,Thats Frams attempt to stop things getting in the motor from wash over. Instead of changing the location of the high pressure valve on their high end filters. they just keep the same old design and put more filter media and a screen lol.. Yeah Fram that's really high end

Have I mention lately how much I absolutely hate automotive engineers? I am now convinced that they are paid to screw stuff up on purpose.
Thread Starter
Senior Member
Joined: Nov 2014
Posts: 603
Likes: 1
From: Hacienda Heights
Year: 1990
Model: Cherokee
Engine: 4.0


