Fluid · Engine Oil
Engine Oil
for 2023 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WD
Fluid Type
15W-40 CK-4 or 5W-40 full synthetic CK-4
Spec: API CK-4
Capacity
10qt
9.46 L
Drain & Refill
10 qt
9.46 L
Change Interval
5,000 mi
8,045 km
Notes
With filter. Duramax L5P diesel. Can also use 0W-40 synthetic in extreme cold
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