Leaking coolant? Head gasket???

[Anthony Cipriano]

Originally Posted by Aurora5000

And what did you say the lifespan of the coolant sealent tablets
were? Do I need to ask the dealership to install tablets on this
upcoming repair?

Thanks,
Steve

Hard to say, exactly. I'd say at 50.000 miles the coolant supplement is probably getting a little "used up" and would need replenishing. Sometimes if there's a seepage I have seen the stuff clot up and plug the leak permanently - even if the coolant is changed and the supplement not replenished. Other times, the supplement keeps getting expended and needs constant replacment if a large leak is encountered. I would say on average to replenish it every 50,000 - 75,000 miles or certainly to replace it/replenish it when the coolant is drained and replaced during normal maintenance.

I'd have the supplement added/replenished any time any repair is made to the cooling system/engine that requires draining the coolant and putting fresh stuff in.