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"Stop leak" for rear main seal?

23K views 11 replies 7 participants last post by  jeffs2014 
#1 · (Edited)
My rear main seal is leaking. Not very bad at all, I've had the jeep about a month or so and haven't done an oil change yet and it's still at the full mark so it's not a big leak.I heard its not really worth replacing the seal unless its really bad or if your doing an overhaul.. So I figured some kind of stop leak would be better than nothing. Any brands I should try? I heard Lucas was good?
 
#3 ·
The guy at o'reillys said that stop leak helps expand any seals or gaskets causing the liquid to less likely be able to excape or "leak". I dot have the tools nor the proper area to do this kind of job so if I do run across somewhere that can do it for a reasonable price, then I will do so. As for now, ill just keep an eye On The oil level and fill as needed.

Thanks for the response!!
 
#6 ·
It doesnt "expand" your gaskets and seals. Its goopy crap that clogs the leak itself and is something you'll never get all the way out of your motor. I would add a quart a day before putting that stuff in. I doubt it would even work. Now go back and punch that guy in the parts store in the head! Just kidding but yeah I wouldnt trust anything they say about "off the shelf fixes" if it were that easy there wouldnt be mechanics.

Good luck!
 
#7 ·
did my rear main about 3 times..........therers no telling if it will leak once youve changed the seal.. mine leaked just a little bit so i kept doin it again with the same results. after that i used a qt of lucaas oil which didnt do anything. so i drained all oil put new highmilage oil in and 1 qt of TX7. no leak been a year and a half. Just every oil chnage dump 1 qt of Tx7. you will be amazed. it also made my knock go away. i have 200000 miles on my wj. runs great never had a problem with engine.
 
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