To seafoam, or not to seafoam?
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 882
Likes: 2
From: Michigan (Home state) Stationed in Montana
Year: 1993
Model: Grand Cherokee
Engine: 5.2L MPI V8 (318)
I have a 94 Cherokee Country, H.O motor, with 239.3k miles on it. I know if I put too much seafoam in her, she'd get TOO clean and could be damaged. So, who thinks it would be alright if I introduced small amounts of the stuff into the engine oil? I've already done the seafoam spray treatment right into the TB, worked great, want to do the engine oil-add now. Any thoughts??
Senior Member
Joined: Feb 2009
Posts: 676
Likes: 0
From: delaware.milton
Year: 1996-1997
Model: Cherokee
Engine: I-6,4.0-246000+miles
i just changed my oil 2 days ago an i plan on dumping at least 3/4 of a can in the oil run a fiew hundred miles,then ill be gone for a week then a fiew hundred miles more then im changing to purple power..aparntly po didnt know how to change the oil an im trying to get all the sludge out
If you already have any leaks already then its advised not to add it to the oil, because it could clean out the gunk that is holding the seals together and cause some pretty bad leaks. If anything I would add less then recommended and have the oil changed within 200 miles.
I didn't do it on mine because my old jeep was a leaky bastard and didn't want this one to be
I didn't do it on mine because my old jeep was a leaky bastard and didn't want this one to be
CF Veteran
Joined: May 2010
Posts: 1,626
Likes: 1
From: Maryville Tennessee
Year: 1995
Model: Cherokee
Engine: 4.0 L
Don't like additives either as far as Seafoam goes I think its great if you change the oil after like directed.as far as additives go I have used Lucas for the crank case to quite things down in the drive train
Trending Topics
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 882
Likes: 2
From: Michigan (Home state) Stationed in Montana
Year: 1993
Model: Grand Cherokee
Engine: 5.2L MPI V8 (318)
Yeah, my old XJ is pretty leaky actually, thanks for bringing that up. Don't want to wash out all the built up gunk holding my engine together. 
Guess I'll live with my rough idle and sewing machine like sound effects from the engine.
IF I added like a thimble full once a day for like two or three days think that would make any difference???

Guess I'll live with my rough idle and sewing machine like sound effects from the engine.
IF I added like a thimble full once a day for like two or three days think that would make any difference???
Senior Member
Joined: Feb 2009
Posts: 676
Likes: 0
From: delaware.milton
Year: 1996-1997
Model: Cherokee
Engine: I-6,4.0-246000+miles
after changing my valve cover gasket an having to take a shop vac to it because of all the gunk id rater it leak then have all the gunk in there,i just changed oilfilter adapter o rings an when i change oil an go to purple power i plan on doing oil pan to..
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 882
Likes: 2
From: Michigan (Home state) Stationed in Montana
Year: 1993
Model: Grand Cherokee
Engine: 5.2L MPI V8 (318)
I think I'll spoonfeed little bits to my Cherokee and clean it up a bit, the P.O. didn't know how to change ANY fluids.. everything was brown and full of crud.
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 882
Likes: 2
From: Michigan (Home state) Stationed in Montana
Year: 1993
Model: Grand Cherokee
Engine: 5.2L MPI V8 (318)
LOL! A gallon of seafoam, good idea! I'll wash (and disintegrate) the cylinders right out with that much!
Thread Starter
Senior Member
Joined: Dec 2010
Posts: 882
Likes: 2
From: Michigan (Home state) Stationed in Montana
Year: 1993
Model: Grand Cherokee
Engine: 5.2L MPI V8 (318)
Have another question. It doesn't say this on the bottle at all, but I should check with all you people anyway I feel! I used the "Seafoam Spray" that you spray right into the throttle body to treat intake and such, and I'm wondering if I would by some roundabout way need to change oil or do anything after running that stuff through the engine.
Senior Member
Joined: Jan 2011
Posts: 652
Likes: 1
From: Mississippi
Year: 98
Model: Cherokee
Engine: 4.0
Not sure about putting it in the oil but I know when u do it on the vac line to the intake manifold its recommended u change your oil as some gunk an carbon can alil past your rings. I've only run seafoam once in my turbo eclipse an it does a hell of a job an everyone I know from import tuners to offroaders love it. Just my. 02
Thread
Thread Starter
Forum
Replies
Last Post
Blackcherokee290
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
28
Jan 8, 2025 11:36 PM
beabout
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
14
Jul 6, 2018 11:10 AM
1stTimer
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
15
Feb 2, 2016 02:25 AM
libengan
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
14
Nov 6, 2015 09:16 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)



