Coolant Maintenance Intervals Coolant Maintenance Intervals - Ops - EPA07/EPA10/GHG14 Heavy Duty, BR0-0002; EUROV MBE900; Gen 5 DD13; Gen 5 DD15 - #8726 The tables in the following topics contain the coolant maintenance intervals. In this section: Silicated Organic Acid Technology (Si-OAT) Coolant Maintenance IntervalsCoolant Maintenance Intervals Table for Legacy- GHG17,BRO-0002 and Legacy Op Manuals; EUROV MBE900; Gen 5 DD13; Gen 5 DD15 Parent topic: Maintenance