Estimates project that over 40% of total engine repair costs are related to problems that originate in the cooling system. Repairs are costly and create unnecessary downtime Cummins Coolentthat affects equipment operations and customer deadlines. Fleetguard cooling system products provide unmatched protection with an easy maintenance program so that you can keep your engines running longer and stronger. In addition to providing superior freeze and boil over protection, Fleetguard products protect your engine from the most damaging cooling system problems, including: