Fluid · Coolant
Coolant
for 2022 Chevrolet Silverado 3500HD 6.6L V8 Duramax L5P · 4WD
Fluid Type
Dex-Cool 50/50 orange
Spec: GM 6277M or GM DEX-COOL
Capacity
29qt
27.43 L
Drain & Refill
24 qt
22.7 L
Change Interval
150,000 mi
241,350 km
Notes
L5P Duramax has large coolant capacity. Initial fill good for 150K miles, then 5 years/50K miles
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