Fluid · Coolant
Coolant
for 2007 GMC Sierra 3500HD 6.6L V8 Duramax Diesel · 4WD
Fluid Type
Dexcool 50/50 orange
Spec: GM 6277M
Capacity
28qt
26.49 L
Drain & Refill
24 qt
22.7 L
Change Interval
150,000 mi
241,350 km
Data quality
Book-style estimate
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Notes
Long-life OAT coolant. Larger capacity for Duramax cooling system.
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