GMC Sierra 3500HD Oil Type & Capacity
GarageDex's oil-spec data shows the GMC Sierra 3500HD takes 5W-30 or 5W-40 engine oil, about 8-10 qt with a filter change, on 2020-2026 models. Older ones use the same grade but hold a different amount - 2010-2019 models take 6-10 qt - so check your year in the table below.
Oil by model year
| Model years | Oil type | Capacity | Buy |
|---|---|---|---|
| 2020-2026 | 5W-30 / 5W-40 | 8-10 qt | Shop 5W-30Shop 5W-40 |
| 2010-2019 | 5W-30 / 5W-40 | 6-10 qt | Shop 5W-30Shop 5W-40 |
| 2009 | 0W-30 | 6 qt | Shop 0W-30 |
| 2007-2008 | 5W-30 / 5W-40 | 6-10 qt | Shop 5W-30Shop 5W-40 |
| 2006 | 10W-30 / 5W-30 | 6-10 qt | Shop 10W-30Shop 5W-30 |
| 2005 | 15W-40 / 5W-30 | 6-10 qt | Shop 15W-40Shop 5W-30 |
Capacity is with a filter change and can vary by engine - open your exact year below for the per-engine figures and our sources. Shop links go to Amazon, and we may earn a commission at no extra cost to you.
Every Sierra 3500HD year
Frequently asked
What kind of oil does a GMC Sierra 3500HD take?
GarageDex's oil-spec data shows the GMC Sierra 3500HD takes 5W-30 or 5W-40 engine oil, about 8-10 qt with a filter change, on 2020-2026 models. Older ones use the same grade but hold a different amount - 2010-2019 models take 6-10 qt - so check your year in the table below.
How many quarts of oil does a GMC Sierra 3500HD take?
About 8-10 qt with a filter change on 2020-2026 models, and 6-10 qt on 2010-2019 models. Capacity varies by engine, so check your exact year for the per-engine figure - and finish on the dipstick rather than pouring in the full amount.
Does the oil type change by year on the GMC Sierra 3500HD?
Yes. We record 6 different factory specs across the years we cover - 2020-2026: 5W-30/5W-40; 2010-2019: 5W-30/5W-40; 2009: 0W-30. Use the table above and confirm against your owner's manual.
Sources. The oil grade and capacity for 22 of 22 model years is checked against a cited source, most often AMSOIL lookup guide - 2026 GMC Sierra 3500HD, 6.6L 8-cyl (L8T), AMSOIL lookup guide - 2026 GMC Sierra 3500HD, 6.6L 8-cyl turbo diesel (L5P) and AMSOIL lookup guide - 2025 GMC Sierra 3500HD, 6.6L 8-cyl (L8T). Each year page lists its own sources.
Last verified 2026-09-23. Maintained by Matan B., who runs GarageDex. How we verify.