Lucas Engine Oil Stop-Leak?

 
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Puddin' Man's AvatarPuddin' Man posted on
August 30, 2010, 7:52 pm
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'94 ThunderChicken LX V8, 70k mostly city miles. The 4.6 has seeped a little oil
for many years. After I checked for burning and blow-by, a mechanic put it
on a rack and confirmed it was coming from the rear-main seal (as expected).

Last summer it lost about 1 quart during a little trip of 800 hiway miles.
Not enough to get all excited about, but, on the other hand, I hate to see
the recurring spot on the garage floor.

Aside from fi cleaner, I'm not an additive user but ... Lucas has a good
rep. Is there any reason -not- to try their Engine Oil Stop-Leak product?

  Thx,
  P

"Law Without Equity Is No Law At All. It Is A Form Of Jungle Rule."


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clare's Avatarclare posted on
August 30, 2010, 8:24 pm
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Re: Lucas Engine Oil Stop-Leak?



On Mon, 30 Aug 2010 18:52:52 -0500, Puddin' Man


 The stop leak ptoducts work by softening hardened seal material and
are quite often successful, at least short term.

The worst that will happen is you may end up needing to replace engine
seals - which are already a problem.

I'd go for it.

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dr_jeff's Avatardr_jeff posted on
August 30, 2010, 10:53 pm
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Re: Lucas Engine Oil Stop-Leak?



Puddin' Man wrote:

oil

Instead of stopping leaks, it might stop oil flow in the oil galleries
where you want it to flow.

 

clare's Avatarclare posted on
August 30, 2010, 10:56 pm
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Re: Lucas Engine Oil Stop-Leak?





oil

  If you understand how the stuff works you KNOW that is not even a
REMOTE possibility.

It simply softens the seal material. If the seal is just hard, the
leak stops. If the seal is damaged, it COULD get a lot worse.

Vast majority of seal leaks are due to hardened lip seals. Catch it
before it grinds the seal surface off the crank and you have a good
chance.

 

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