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Engine Cooling Service Specifications

ENGINE COOLING SERVICE SPECIFICATIONS

Application Specification
Coolant Capacity
With Rear Heater 16.5 Qts. (15.6L)
Without Rear Heater 13.5 Qts. (12.8L)
Coolant Replacement Intervals (1) 150,000 Miles
Thermostat Opening Temperatures
Thermostat Starts To Open 188°F (87°C)
Thermostat Fully Open 195°F (91°C)
(1) Or every 60 months, whichever comes first. Use GM Goodwrench DEX-COOL®.
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