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  #1  
Old 11-17-2008
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Icon2 Stop Oil Leak Additive

My beater truck has a slight oil leak at the rear main,leaks about a quart a month using the synthetic blend oil. Can anyone recommend a good stop leak additive that will stop or atleast slow it down. I know I could switch to regular oil and that would slow it some but since its a old truck I rather use the better oil.
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Old 11-17-2008
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I haven't heard very good things about those, I've never used it myself though.
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Old 11-17-2008
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The best oil additive would be a new rear main seal. A quart a month is quite a bit of oil to be leaking. You can try an additive but they are rarely a good idea. It would be much better to fix the real problem. I don't think changing to regular dino oil would really help much, but a thicker oil may slow down the leak.
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Old 11-17-2008
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Quote:
Originally Posted by My91Ranger View Post
The best oil additive would be a new rear main seal. A quart a month is quite a bit of oil to be leaking. You can try an additive but they are rarely a good idea. It would be much better to fix the real problem. I don't think changing to regular dino oil would really help much, but a thicker oil may slow down the leak.

couldn't have said it better.

nothing you "pour" in is going to help.
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Old 11-17-2008
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Originally Posted by 04 EDGE View Post
couldn't have said it better.

nothing you "pour" in is going to help.

Depends on what you mean by "help" - had a buddy with a 1982 corvette leaking oil at front crank seal bad enough that you could actually watch the oil puddle grow while the engine was running. I told him it would be a waste to add stop leak, but the leak actually started to slow down just a few minutes after the stop leak was added.

This is what we used:




...and the Justice Brother's Oil Stop Leak Part No. ESL/44
is the only one I've used that actually worked.
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  #6  
Old 11-17-2008
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Are you sure that it is the rear main seal? My oil leak seems to be coming from that direction, but I know that my oil gasket is the problem. Although, both problems are not easily fixed, but it would be better to address the actual problem instead of using the additive.
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Old 11-17-2008
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I've also seen where the front of the motor has the leak and it would run all the way down the oil pan lip and drain at the back of the motor.
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  #8  
Old 11-17-2008
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There is oil all over the tranny so the rear main is my first guess. I might try a stop leak just to see if it works or not cause the less work I do on this truck the better.
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  #9  
Old 11-17-2008
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In other words , why do it right when you can cheat ?
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Old 11-17-2008
04 EDGE
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when you say all over the trans, can you be more specific.

the valve cover gasket can leak oil on the trans
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  #11  
Old 11-17-2008
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the stop leak could clog the oil return lines clog the pump . try using ragular motor oil the synthetic blend oil will leak more the the regular oil
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  #12  
Old 11-17-2008
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Originally Posted by john93rangerstx View Post
the stop leak could clog the oil return lines clog the pump . try using ragular motor oil the synthetic blend oil will leak more the the regular oil
x2 If it's just a beater why use the good stuff ?
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Old 11-17-2008
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Originally Posted by OTRtech View Post
In other words , why do it right when you can cheat ?
Like the guy in the corvette for example, he didn't want to "do it right" - it was an old car that he was trying to get rid of. The leak stopped.
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Old 11-17-2008
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Originally Posted by john93rangerstx View Post
the stop leak could clog the oil return lines clog the pump . try using ragular motor oil the synthetic blend oil will leak more the the regular oil
I've never seen an oil stop leak that worked like a radiator stop leak. You're not stopping the leak with a paste or pellets, but with a seal conditioner. I could see where sludge might be a problem in a really dirty engine, but that just means that the engine has a lot more problems besides leaky seals.
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  #15  
Old 11-17-2008
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Originally Posted by OTRtech View Post
In other words , why do it right when you can cheat ?
On this truck....



Your right
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  #16  
Old 11-17-2008
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Originally Posted by 04 EDGE View Post
when you say all over the trans, can you be more specific.

the valve cover gasket can leak oil on the trans
I took a pic but photobucket seems to have problems at the moment,It wont let me upload it.
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  #17  
Old 11-17-2008
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my explorer my galant and both use a quart a month for the last 3 years for the explorer and 2 galant ant they both run fine
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Old 11-17-2008
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  #19  
Old 11-17-2008
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just remember that oil flows down and back. switching between synthetic and regular oil does nothing, it is cheaper though. best thing to do is replace the seal. no matter what anyone says about a stop leak product they are just a cover up and usually cause more problems. just replace it and be on with life. and it looks like your oil pan was also leaking or the valve covers were
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  #20  
Old 11-17-2008
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run a little thicker conventional oil. Most any "sealer" is going to be a waste, and probably more hurtful than good, and probably not cure your problem.
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  #21  
Old 11-18-2008
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Quote:
Originally Posted by Hanks Rangers View Post
no matter what anyone says about a stop leak product they are just a cover up and usually cause more problems.

Just to clarify in case some didn't quite understand: If you're selling, dumping, trading, tired of spending money on the vehicle, have better things to do, think it's ready for the junk yard before too long...use some good stop leak, or perhaps do nothing at all - If you're the type that always wants to keep your vehicle properly maintained/repaired by always doing it "right the first time" and don't mind spending the money to do it right...by all means replace the seal, replace any other worn parts you find while you're doing the repair, maybe even consider doing an entire engine swap if you think it would be for the best.

I took the following into consideration when I first gave a reply:

"My beater truck has a slight oil leak at the rear main,leaks about a quart a month using the synthetic blend oil. Can anyone recommend a good stop leak additive that will stop or atleast slow it down"

Sorry if I inappropriately answered the question.
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  #22  
Old 11-18-2008
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synthetic is alot sliper of a oil it will leak more then reg motor oil
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  #23  
Old 11-18-2008
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im goin to look it over this weekend and see where its all coming from,but if its the rear main then oh well. If I fixed everything thats wrong with the truck it would cost 10x the trucks worth. BTW, kbb.com said the trucks only worth $575.00.
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  #24  
Old 11-18-2008
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Here you go, lucas makes good stuff, also use conventional oil in it.

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  #25  
Old 11-19-2008
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Originally Posted by mj550 View Post
Here you go, lucas makes good stuff, also use conventional oil in it.


Lucas is great - I've never seen the Stop Leak before.

Bought this yesterday because I normally see it for around 149.00, but I got it for 125.00



...it'll mainly be used for resale though.
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