Bar’s Leaks Pelletized Stop Leaks seals internal, external and coolant-to-oil leaks. It is specially formulated to seal larger leaks better than other stop leak products.
Works safely and effectively on plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs. Lubricates water pump seal and inhibits the formation of rust and scale.
Bar's Leaks Pelletized Radiator Stop Leak is compatible with ALL brands of antifreeze including conventional green or blue
(silicate-based) and extended life red/orange or yellow (OAT/HOAT) coolant. For most vehicles leaks stop in
only a few minutes.