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1989 Fleetwood FWD / 2000 ETC / 2000 STS / 2006 STS V-8 1SF RWD
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475 Posts
Hello...
I have always broken them up...to avoid plugging(?) anything up.
Don't really know why.

Put them in the hose and fill with a 50/50 mixture of "the green stuff" and distilled water.
Top off in the surge tank if needed.

Post back your results.
 

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1989 Sedan DeVille is now just a fond memory ....
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10,345 Posts
You can just place them in the hose, they will disolve rather quickly.
 

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Super Moderator
2010 DTS
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88,980 Posts
Like Kev said they will fall apart very quickly when wet. On the 4.9 you can just stuff them down the radiator neck. If they don't fit, then crush or break them up a bit. The only reason for crushing them is because they may make contact with the trans cooler line in the radiator side tank and prevent you from pushing any more in there.
 

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1989 Sedan DeVille is now just a fond memory ....
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10,345 Posts
If you put them in to the radiator neck you (I did this) can disolve them in a cup of water first and then pour the spooge right down in there. Just be sure to get them directly into the cooling system, either radiator or hose, NOT in the overflow tank.
 
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