fact_checkYear answer

2025 3.0 Duramax Oil Capacity

The 2025 3.0 Duramax oil capacity is 7 qt with filter, depending on the vehicle application. The primary listed application uses 7 qt (6.6 L) with a new filter.

With filter

7 qt

Oil spec

dexosD diesel oil

Common viscosity

0W-20

Oil Capacity by Year and Application

All numbers below are with a new oil filter.

2023-2026Silverado 1500 / Sierra 1500 / Tahoe / Yukon with 3.0L Duramax LZ07 qt6.6 LdexosD diesel oil
Use this as the fast lookup answer for 2025, then confirm the exact truck series and owner manual before filling. The with-filter capacity is the right number for a full oil and filter change.
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