: Cooling system sealants....



kcnewell
08-28-03, 11:45 PM
In answer to some of the cooling system issues that are commonplace in these forums I think that rather than complaining about the (Supposed) shortcomings of the engines it's best to provide solutions to the problems.

The GM coolant supplement pellets are made by the same company that markets the BarsLeak brand. The powdered BarsLeak gold is the same as the GM supplement. The BarsLeak in the jar with the brown liquid has the same material for sealant as the GM supplement but includes the soluable oil (brown liquid) to make it easier to pour in.

The water pump does not need any sort of lubricant....

There are other sorts of sealers and brands on the market. I personally only recommend the conventional BarsLeak, BarsLeak Gold or the GM coolant supplement based on the extremely successful testing I have done in the past with those products.

The ingredient in the coolant supplement is ground up ginger root and walnut shells. The fibers in the ginger root mat in a leak and swell when exposed to the air on the other side of the leak to seal it. The other sealers that use metallic components (such as BarsLeak Liquid Aluminum or the Solder Seal sealant) are definitely NOT recommended. The GM sealant and/or the BarsLeak brand is better because of the ability of the sealant to seal any coolant seepages without doing any other harm to the system. The main focus of the recommendation to use the supplement is to
protect against any internal seepages that would put coolant into the oil and be invisible otherwise. The ground up ginger root has proven to be one of the best imaginable cooling system sealers through the process of elimination. It just works better than anything else currently known and is basically harmless to the cooling system otherwise.

The use of cooling system sealers is widespread in the automotive industry and elsewhere. Most makers install the supplement at the factory.

I hope that this information helps some of you guys.

Katshot
08-29-03, 05:55 AM
I was always told that the GM supplement had an additive that prevented the deterioration of the cylinder liner seals in Cadillac engines. Is this not true?

kcnewell
08-29-03, 07:22 AM
It's not any different than the BarsLeak you buy at the local Pep Boys....I've had "0" problems using it since the Introduction of the aluminum block engines in the early eighties. I have heard that story about the seals but it ( from all the information I have at hand ) is not true.

jonrodman
09-20-03, 11:30 PM
In answer to some of the cooling system issues that are commonplace in these forums I think that rather than complaining about the (Supposed) shortcomings of the engines it's best to provide solutions to the problems.

The GM coolant supplement pellets are made by the same company that markets the BarsLeak brand. The powdered BarsLeak gold is the same as the GM supplement. The BarsLeak in the jar with the brown liquid has the same material for sealant as the GM supplement but includes the soluable oil (brown liquid) to make it easier to pour in.

The water pump does not need any sort of lubricant....

There are other sorts of sealers and brands on the market. I personally only recommend the conventional BarsLeak, BarsLeak Gold or the GM coolant supplement based on the extremely successful testing I have done in the past with those products.

The ingredient in the coolant supplement is ground up ginger root and walnut shells. The fibers in the ginger root mat in a leak and swell when exposed to the air on the other side of the leak to seal it. The other sealers that use metallic components (such as BarsLeak Liquid Aluminum or the Solder Seal sealant) are definitely NOT recommended. The GM sealant and/or the BarsLeak brand is better because of the ability of the sealant to seal any coolant seepages without doing any other harm to the system. The main focus of the recommendation to use the supplement is to
protect against any internal seepages that would put coolant into the oil and be invisible otherwise. The ground up ginger root has proven to be one of the best imaginable cooling system sealers through the process of elimination. It just works better than anything else currently known and is basically harmless to the cooling system otherwise.

The use of cooling system sealers is widespread in the automotive industry and elsewhere. Most makers install the supplement at the factory.

I hope that this information helps some of you guys.

Great informative post!

Just to clarify; Would there be any advantage or harm in not adding the pellets after a flush? If there is not a leak, then there is not a need for the pellets. Would the coolant cool more efficiently with just antifreeze and water without the pellets? Do the pellets do any damage? Should I just buy them and put them in and forget about it for another 100,000 miles? This is my first NorthStar and also the first time I have considered adding stop leak pellets. In the past if a coolant leak developed, I would replace the leaking part. Has anyone actually had any coolant leaks other than the water pump?
Jon
96STS

jam224
09-22-03, 04:05 PM
Has anyone tried a cellulose based coolant sealer? Although the Cadillac dealership told me that I should not use their sealer or BarsLeaks on a car with high mileage (106k), my personal mechanic told me that a cellulose based sealant would be OK. No risk for clogging, I suppose. Does anyone know if this is true?

Thanks so much.

El Dobro
09-22-03, 05:05 PM
The Caddy dealer told you not to use the pellets in a high mileage car? Don't they read their own manuals? I would think that the higher the mileage, all the more reason to use the pellets.

jonrodman
09-22-03, 08:39 PM
Has anyone tried a cellulose based coolant sealer? Although the Cadillac dealership told me that I should not use their sealer or BarsLeaks on a car with high mileage (106k), my personal mechanic told me that a cellulose based sealant would be OK. No risk for clogging, I suppose. Does anyone know if this is true?

Thanks so much.

I am getting a coolant flush tomorrow and am going to skip the sealer. I may use the car for pulling an ATV trailer into the mountains and want all the cooling available. I am concerned about the clogging, and the reduced capacity of the coolant to conduct heat with the sealant. My car does not leak coolant and I am going to take the chance that it won't start leaking. I have run aluminum engines before and have never had any coolant leaks except at the water pump.

Jon
96STS

jam224
09-24-03, 12:24 PM
The Caddy dealer told you not to use the pellets in a high mileage car? Don't they read their own manuals? I would think that the higher the mileage, all the more reason to use the pellets.

That's exactly what I thought. However, I think they are concerned that the fibers in the pellets might further clog an already dirty system causing the coolant to circulate poorly, which could lead to overheating. In fact, BarsLeak, which everyone says is the same thing as the Caddy pellets, recommends flushing the system prior to use of the sealant. Perhaps for the same reason? Given the rate at which I'm loosing coolant, I am willing to try anything to prevent a major fix, like replacing the heads.