COOLING SYSTEM LEAKS

Rislone’s Pelletized Radiator Stop Leak isn’t new at all — it’s been on the market worldwide since 1947 — but for reasons unexplained, it hasn’t been available in Canada until now.

It features patented ‘Rhizex’ pellets that dissolve in minutes to solve most common cooling system problems, the maker says, including internal, external and coolant-to-oil leaks in radiators, freeze plugs, gaskets, heads, blocks and heater cores. It’s "specially formulated" to seal larger leaks and it also conditions the cooling system, inhibiting rust and corrosion, lubricating water-pump seals and helping to control electrolysis, all of which reduce the risk of engine failure due to overheating or poor lubrication.

The product is said to be compatible with all brands of antifreeze, including conventional green or blue (silicate-based) and extended-life red/orange or yellow (OAT/HOAT) coolant. It works safely and effectively, Rislone says, on plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs.

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