Checked oil specs by engine
2021 Ram 3500 oil capacity, type & filter
The 2021 Ram 3500 takes 7 qt of 0W-40 (6.4L V8) and 12.1 qt of 10W-30 (6.7L 6-Cyl Turbo Diesel). Select your engine below before buying.
| Engine | Capacity | Oil Type | Filter |
|---|---|---|---|
| 6.4L V8 | 7 qt | 0W-40 | CHAMP / LUBER-FINER PH48 |
| 6.7L 6-Cyl Turbo Diesel | 12.1 qt | 10W-30 | ULTRA-POWER 57620 |
Match one of 2 checked engine options before buying oil or a filter.
Champ PH48 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
ULTRA-POWER 57620 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
Search paths only — confirm your OEM viscosity spec and quantity before checkout.
Search paths only — confirm your OEM viscosity spec and quantity before checkout.
2021 Ram 3500 oil specs: capacity conditions and filter notes
Check the door jamb sticker, owner's manual, or displacement badge on the engine cover. Match it to the engine options listed above before buying oil or a filter.
All listed filter part numbers are compatible alternatives for your vehicle. Choose any one brand, then confirm the exact part number at checkout.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Source coverage for the 2021 Ram 3500
Supported by AMSOIL Lookup and Castrol (Olyslager).
Supported by AMSOIL Lookup and Castrol (Olyslager).
Supported by Purolator Part Finder, RockAuto, and AMSOIL Lookup.
4 checked source rows for the 2021 Ram 3500.
Before ordering for this 2021 Ram 3500
- Capacity
- 7 qt
- Oil type
- 0W-40
- Interval
- 8,000 mi / 12 mo
- Filter
- Champ PH48
- Capacity
- 12.1 qt
- Oil type
- 10W-30 (Above -18°C)
- Interval
- 15,000 mi / 12 mo
- Filter
- ULTRA-POWER 57620
Source check: Last checked 2026-06-23 from RockAuto, Purolator Part Finder, AMSOIL Lookup, and Castrol (Olyslager).
Ram 3500 oil specs by year
This table includes checked Ram 3500 model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 7 qt (multiple engines) | 0W-40 | PG2222 |
| 2024 | 7 qt (multiple engines) | 0W-40 | Purolator L12222 |
| 2023 | 7 qt (multiple engines) | 0W-40 | WIX 51032 |
| 2022 | 7 qt (multiple engines) | 0W-40 | CHAMP / LUBER-FINER PH48 |
| 2021 Current page | 7 qt (multiple engines) | 0W-40 | CHAMP / LUBER-FINER PH48 |
| 2020 | 7 qt (multiple engines) | 0W-40 | WIX 51032 |
| 2019 | 7 qt (multiple engines) | 0W-40 | PG2222 |
| 2018 | 7 qt (multiple engines) | 5W-20 | WIX 51032 |
| 2017 | 7 qt (multiple engines) | 5W-20 | WIX 51032 |
| 2016 | 7 qt (multiple engines) | 5W-20 | WIX 51032 |
| 2015 | 7 qt (multiple engines) | 5W-20 | WIX 51032 |
| 2014 | 7 qt (multiple engines) | 5W-20 | WIX 51032 |
| 2013 | 7 qt (multiple engines) | 5W-20 | WIX 51032 |
| 2012 | 7 qt (multiple engines) | 5W-20 | AMSOIL EA15K01 |
| 2011 | 7 qt (multiple engines) | 5W-20 | AMSOIL EA15K01 |
How we verified 2021 Ram 3500 oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-23.
This page checked 4 sources for the 2021 Ram 3500. The table lists which checked source contributed capacity, oil type, or filter evidence.
We checked leading oil brands and aftermarket filter catalogs so you don't have to.
- Confidence
- Verified fit
- Sources checked
- 4
- Last checked
- 2026-06-23
- Capacity: AMSOIL Lookup and Castrol (Olyslager)
- Oil type: AMSOIL Lookup and Castrol (Olyslager)
- Filter: Purolator Part Finder, RockAuto, and AMSOIL Lookup
- Change interval: AMSOIL Lookup and Castrol (Olyslager)
| Source | Supports | Checked | Link |
|---|---|---|---|
| RockAuto | Filter | 2026-06-23 | Checked source |
| Purolator Part Finder | Filter | 2026-06-23 | Visit brand site |
| AMSOIL Lookup | Capacity, Oil type, Filter | 2026-06-23 | Visit brand site |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-23 | Visit brand site |
2021 Ram 3500 maintenance checklist
One part checked. Look up the rest while you're here.
Where to buy
These are retailer search paths for your vehicle's oil and filter specs. Verify final fitment at checkout.
This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.
Walmart
Compare oil and filter listings for the 2021 Ram 3500. Confirm capacity, viscosity, and filter part number before checkout.
Search 2021 Ram 3500 oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2021 Ram 3500 before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2021 Ram 3500 oil & filter →Amazon
Search Amazon listings for the 2021 Ram 3500 and check listing fitment notes against the specs above.
Search 2021 Ram 3500 oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2021 Ram 3500 and verify oil capacity, viscosity, and filter part number before ordering.
Search 2021 Ram 3500 oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.