Bars leaks oil stop leak

Try some "Valve Job in a Jar". You will find it near "Head Gasket in a Can".

Just kidding.

I wouldn't put it in any Ferrari. The correct thing to do is to a proper repair. No Band-Aids.
In the long run you will be much better off.

 

so then forget about it and drive it, check the level often. Don't put Fix it in a Can type stuff in the engine.

Heck, its a 348, it should leak a little oil.

 

I would not use that stuff on one of these engines with the dry sump set-up. That being said, the stuff is really for leaks past gaskets where it can congel and gob up the leak. I doubt it would work on a rotating shaft seal such as the cam seal. As long as the oil isn't getting on the cam belt I think I would deal with the leak until the engine-out. If the belt is getting wet with the oil I think I would speed up the engine out to soon.

 

How exactly does it congeal at the leak... And yet not in every tiny oil passage?

Why not change your oil to 20/50 non synthetic. That might stop the leak and not kill your motor...

 

Doesn't it swell the seal? The congeal idea is interesting, but I always thought of it as kinda like the old brake-fluid-on-the-seal trick. Hoping somebody will respond with a knowledgeable "chemical-engineer" response not just based on the brand of the car it's on.
OTOH, oil is cheap and cleanup is easy.

 

I'm not sure if it works, I'm not sure how it works, I'm not sure what the long term effects on an engine might be.

But, I am 100% sure that if I knew the stuff had been used in any car that I was thinking of buying then I would walk away every time.

And for me that principle would go for beater all the way up to exotica.

 

How would you know?

 

He used the conditional "if I knew"

 

My buddy told me if you drop a raw egg in a leaky radiator, the egg will fix it. LOL

 

I once looked at a very nice 250Gt in San Francisco that someone had put some stop leak into for the cooling system I beleive. After it was added the owner told me the car would overheat in about 15 minutes from cold. The engine needed at least to be taken apart and that stuff cleaned out. I passed on the car at 15K. I kick myself to this day.

 

Back in the early days that was used to fix rear main seal leaks in american iron

Would blow out any seal that had a slight crack in it so its a crap shoot at best.

May work for a few hundred miles but proper repairs will need to be made. Replace all rubber with new


Like putting a bandaid on shotgun wound

 

My bad, I was thinking of the bars leaks coolant product. The oil product is as you noted, it causes the seals to soften/swell. That being the case if you were going to change out all seals next engine out I guess it wouldn't really hurt anything. I have used transx in automatic transmissions, which virtually does the same thing, with really good success. Of course, I was just trying to get a few more miles out of a transmission versus maintenance on an expensive engine... I suppose I would probably try it.