2.1oz Bar's Leaks HDC Radiator Stop Leak Tablets $2.99 at Amazon

$2.99 $6.99

Amazon has the 2.1oz Bar's Leaks HDC Radiator Stop Leak Tablets on sale for $2.99 with free shipping on $25+ or with Prime. Seals external, internal and coolant leaks. Drive/idle vehicle for 15 to 20 minutes for sealant to take effect.

$2.99 retail: $6.99
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yellowbal
yellowbal
Ben's cred: 34
Posted 02/02/2023 at 05:27 PM PT
Posted 02/02/2023 at 05:27 PM PT
These don't work and can be very harmful to engine. The cooling passages in the engine block can be clogged by these repair kits.

Replacing a failing radiator allows scheduling. Using something like this can make you breakdown on the road or somewhere inconvenient/dangerous.
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