lucas oil stop leak?
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My 98 ls1 that I just bought has a small oil leak.
Anyone ever use this stuff? Is it harmful?
I can't tell where its coming from there is a lot of oil residue around the pan, but I'm not sure its the gasket.
Anyone ever use this stuff? Is it harmful?
I can't tell where its coming from there is a lot of oil residue around the pan, but I'm not sure its the gasket.
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I have never had any faith in leak stopper or tune ups in a can. Clean it all off and see where its coming from, might be something simple to fix.
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I've always used penzoil platinum in my gm cars, I haven't changed the oil in this ca yet, buy i plan on using the same. I'm not sure on the oil pan. This is how much it has leaked in about 8 days of being parked in the garage, would you consider this a slow leak?
![](http://i60.tinypic.com/21oq3yp.jpg)
#16
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First off, if it smells like snake oil it probably is. But for the sake of argument, let's look inside at how these "magic" products really work. Before we start, let's put on our thinking caps and apply the K.I.S.S. theory.
Stop Leak... Sounds magical enough, right? Stops the leak. That's what's important, right? Or is it? Let's now take a look at the leak, and pick a common one. How about a rear main oil seal leak? That's a pretty common problem that many times leads to just the product we are talking about. First, why are we leaking here in the first place? Probably because the rubber seal has hardened due to age and heat. It simply cant provide a tight enough lip seal around the crankshaft. Oil squeezes out under pressure creating said leak. Period.
Usher in the magic cure that your local parts guy guy suggested and dump it into the oil pan. We now have a magic cure being circulated throughout our engine. He told us it would take time, so we patiently wait for the leak to subside. Once this magic cure hits our rear main seal, what happens? It undoubtedly will leak out just like before...with one minor difference. It has mixed with our oil and changed the chemical composition of our oil and is slowly penetrating the rubber seal using a chemical designed to change the composition of the rubber, causing it to soften and swell. This "swelling" of the rubber expands the seal causing the leak to magically disappear... for a while. By softening the rubber we have also weakened it, and done so in an area that is exposed to 40 psi or so anytime the engine is running. Also, keep in mind this magic fix didn't enter your engine and intelligently seek out that rear main seal like an intelligent nanobot. It coated EVERYTHING in your engine, including all the other rubber seals that come in contact with the oil that aren't leaking...yet. And we now know what happens right? I've seen a lot of automatic transmissions bite the dust because of this very issue as well. Of course, all this said, it is only an opinion, and we all know what those are like, right?
Stop Leak... Sounds magical enough, right? Stops the leak. That's what's important, right? Or is it? Let's now take a look at the leak, and pick a common one. How about a rear main oil seal leak? That's a pretty common problem that many times leads to just the product we are talking about. First, why are we leaking here in the first place? Probably because the rubber seal has hardened due to age and heat. It simply cant provide a tight enough lip seal around the crankshaft. Oil squeezes out under pressure creating said leak. Period.
Usher in the magic cure that your local parts guy guy suggested and dump it into the oil pan. We now have a magic cure being circulated throughout our engine. He told us it would take time, so we patiently wait for the leak to subside. Once this magic cure hits our rear main seal, what happens? It undoubtedly will leak out just like before...with one minor difference. It has mixed with our oil and changed the chemical composition of our oil and is slowly penetrating the rubber seal using a chemical designed to change the composition of the rubber, causing it to soften and swell. This "swelling" of the rubber expands the seal causing the leak to magically disappear... for a while. By softening the rubber we have also weakened it, and done so in an area that is exposed to 40 psi or so anytime the engine is running. Also, keep in mind this magic fix didn't enter your engine and intelligently seek out that rear main seal like an intelligent nanobot. It coated EVERYTHING in your engine, including all the other rubber seals that come in contact with the oil that aren't leaking...yet. And we now know what happens right? I've seen a lot of automatic transmissions bite the dust because of this very issue as well. Of course, all this said, it is only an opinion, and we all know what those are like, right?
#17
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I've always used penzoil platinum in my gm cars, I haven't changed the oil in this ca yet, buy i plan on using the same. I'm not sure on the oil pan. This is how much it has leaked in about 8 days of being parked in the garage, would you consider this a slow leak?
![](http://i60.tinypic.com/21oq3yp.jpg)
![](http://i60.tinypic.com/21oq3yp.jpg)
![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
#18