Coolants and Additives

Coolants are formulated specifically for use in heavy-duty diesel engines. These products contain conventional heavy-duty chemical and organic corrosion inhibitors, which provide enhanced protection for diesel engines from liner pitting and hard water scale deposits. In addition, ES Compleat™ products provide the highest water pump protection available in the marketplace. Fleetguard ES Compleat™ Concentrate mixes readily with clean tap water or, better still, de-mineralised water (50/50 mix),  while ES Compleat™ Premix is fully formulated  with de-mineralised water and ready to use.

The largest problem we face is that glycol (also referred to as antifreeze) has been used for years to protect the Coolant from freezing in some countries. What is very often overlooked however, is that it also raises the boiling point of the Coolant and should protect the Cooling System from corrosion. These last two points are why most OEM’s require the use of 40% to 60% glycol based Coolant to be used all year round irrespective of the ambient climate/temperature. A 50% glycol/water solution will increase the boiling point from 100°C to 108°C, suppress the freezing point from 0°C to -37°C and provide good corrosion protection capabilities. A Water Filter is also an important part of many cooling Systems. Not only is it a visible reminder that the Cooling System needs to be serviced, it provides a way of maintaining both the corrosion inhibitor level and the cleanliness level within the coolant thus protecting the water pump from abrasive wear. The key to a reliable cooling system is to Start Clean/Stay Clean. The best way to achieve this is by using Fully Formulated, Pre-Mixed, Life Time Coolant for 1st Fill/Top Up together with Correct Maintenance Practices.