Problem:
Coolant is depleted of buffering ingredients and becomes extremely corrosive, literally eating holes in cooling system components. By-products of corrosion damage, as well as rust and scale, clog the passageways that conduct the water through the radiator and choke off the flow. This may result in an overheated engine that may be damaged beyond repair.

Solution:
The entire cooling system is first cleaned and then all debris and worn out coolant is completely removed from the system. Then, fresh new premium coolant is added. Conditioners are also included to prevent rust and corrosion and BG Universal Cooling System Sealer is also included to prevent leaks.

See Below:

Severe corrosion can occur when additives that protect the cooling system have been depleted.	Rust, scale and sludge can plug cooling system fins, preventing proper circulation of coolant.