Cooling system pellets

[Lloyd1986]

In my gregories service guide on how to change the coolant, it sais to place three cooling system pellets (Part No 9214 0053) into the upper radiator hose. What on earth are they? Even google only had 3 unrelated results.

[Not_An_Abba_Fan]

These pellets are part of a genuine coolant service kit. They are designed to stop any minute leaks in the system.

[Doctor Bob]

the pellets are actually crushed walnut shells, the bits flow around with the coolant chipping any buildup away from the back of the water pump seal helping to stop leaks.

Rob

[Lloyd1986]

Sorry guys, get went and bought some. I was reading it as "palettes" not "pellets", because im a retard.

[krazyboris]

Just curious, how much did they sting ya for em?

[WAGON MAN]

They should cost you no more than $5 for your local Holden dealer.

[Lloyd1986]

Well it was $7 for a pack of 3, not too bad