Our team narrowed down the best radiator stop leaks on the market Works safely and effectively on plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs Read this review and save yourself time and money.
Kleen-flo RAD SEAL RADIATOR STOP LEAK - Crescent Oil
Get the scoop on the best radiator stop leak additives
We've got reviews and a simple guide to help you pick the right one
Easy solutions for a cool ride! Works safely and effectively on plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs. It is specially formulated to seal larger leaks better than other stop leak products
