Cooling system treatment formulated for protection, to seal leaks

user-gravatar Headshot

Professional DiFM Cooling System Treatment from Bar’s Leaks is formulated to protect vehicle cooling systems and seal internal, external and coolant-to-oil leaks. It can be used in any vehicle, as well as stationary equipment, and is compatible with all types and brands of antifreeze, including conventional green or blue (silicate-based) and extended-life red/orange or yellow (OAT/HOAT) coolant, the company says; it also works in systems containing only water, although in these cases a cooling system anti-rust and water pump lube also is recommended.

The tablets, which are five grams each for easier installation in modern radiator necks, fully dissolve in minutes, according to Bar’s Leaks; the treatment inhibits the formation of rust and scale, keeps the cooling system clean, neutralizes pH imbalance, controls electrolysis and lubricates the water pump seal. The company says it also seals and stops radiator tank seam seal leaks, leaks around head bolt threads, core plug leaks, hose connection leaks (cold water leaks), coolant-to-oil leaks and most other internal and external leaks.

The product will not damage the cooling system and is nontoxic, according to Bar’s Leaks, and is harmless to all plastic, metals, hoses and connections. One container contains 100 tablets. Initial application is four tablets per gallon of cooling system capacity; for preventative maintenance, two tablets per gallon of cooling system capacity should be installed directly into the radiator every 15,000 miles.

For more information, go to