Operation and maintenance manual

Cooling System QSB4.5 and QSB6.7
Page V-4 Section V - Maintenance Specifications
Cooling System
Specifications
Coolant Capacity (four-cylinder engine only)..........................................................................................8.5 liters [2.2 gal]
Coolant Capacity (six-cylinder engine only).............................................................................................10 liters [2.6 gal]
Standard Modulating Thermostat - Range - Industrial Applications...........................................88 to 97°C [190 to 207°F]
Maximum Allowed Operating Temperature - Industrial Applications ...........................................................107°C [225°F]
Minimum Recommended Operating Temperature.........................................................................................71°C [160°F]
Minimum Recommended Pressure Cap - Industrial Applications.................................................................50 kPa [7 psi]