GM Coolant Tabs

[MSDGN]

Saw a post regarding the GM Coolant Tabs and not to use them with the heater hoses connected as they will clog the heater core...I'm getting ready to finish a headgasket job on a friends car and want to put some tabs in before start-up...the heater can be bypassed easily enough but was wondering if this was true so anyone have any experience with using the tabs and clogging the heater...

 

[Reaper]

no caddy comes out of the dealer with out a few of them in there.

Nick uses them quite often i would not worry to much scott. i would say not but maybe nick will chime in here. i would not worry however.


Dathan

 

[fast eddie]

every GM car & truck has them installed from the factory

 

[87ttypeV8]

what are they?

i think i may have a slight coolant leak

will they help!?

 

[onefastjackass]

I don't like them.

I personally see no need for them unless you own a 4300 caddy engine.Not trying to offend anyone but if the engine is built correctly why would you even use them??None of the engines I have ever assembled needed them.

But as I am always willing to learn someone please educate me on why you would need them.

 

[87ttypeV8]

ic...

well what do they do

or better yet... (so no rude comments) what were they intended for?

 

[fast eddie]

too prevent coolant leaks

 

[U1ARUNIT]

They work well. If you don't add more than is called for you will be fine.

 

[MSDGN]

So how many tabs should be added?

 

[U1ARUNIT]

I only use 2 tabs at a time per coolant change/flush.