Fluid · Coolant
Coolant
for 2013 GMC Sierra 2500HD 6.0L V8 Vortec · 4WD
Fluid Type
Dex-Cool 50/50 orange
Spec: GM 6277M or equivalent long-life OAT
Capacity
18qt
17.03 L
Drain & Refill
15 qt
14.19 L
Change Interval
150,000 mi
241,350 km
Notes
Total capacity includes engine and heater core; first change at 150k, then every 5 years/150k
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