Fluid · Coolant
Coolant
for 2022 GMC Sierra 1500 3.0L I6 Duramax Diesel · RWD
Fluid Type
Dexcool 50/50
Spec: GM 6277M
Capacity
14.2qt
13.43 L
Drain & Refill
12.5 qt
11.82 L
Change Interval
150,000 mi
241,350 km
Notes
Diesel engine has separate EGR cooling circuit. First change at 150k miles, then every 5 years/150k miles.
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