Fluid · Coolant
Coolant
for 2001 GMC Sierra 3500 6.6L V8 Diesel · RWD
Fluid Type
Dex-Cool 50/50 orange
Spec: GM 6277M (OAT)
Capacity
27qt
25.54 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
Duramax has larger cooling system. First change at 150k miles, then every 5 years/150k
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