Checked oil specs by engine
2020 GMC Terrain oil capacity, type & filter
Multiple engine options are listed for the 2020 GMC Terrain. Select your engine below before buying oil or a filter.
Match one of 3 checked engine options before buying oil or a filter.
AMSOIL EA15K50 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
AMSOIL EA15K50 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
Confirm Purolator L21406 in the retailer selector before checkout.
2020 GMC Terrain 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.
With filter means the volume includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.
Retailer fitment tools may use different data. Confirm oil capacity, viscosity, and filter part number before ordering.
Source coverage for the 2020 GMC Terrain
Supported by AMSOIL Lookup, Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager).
Supported by AMSOIL Lookup, Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager).
Supported by AMSOIL Lookup, RockAuto, and Purolator Part Finder.
6 checked source rows for the 2020 GMC Terrain.
Before ordering for this 2020 GMC Terrain
- Capacity
- 5.3 qt (With filter)
- Oil type
- 0W-20
- Filter
- AMSOIL EA15K50
- Capacity
- 6 qt (With filter)
- Oil type
- 5W-30
- Filter
- AMSOIL EA15K50
- Capacity
- 5.3 qt
- Oil type
- Unverified
- Filter
- Purolator L21406
Source check: Last checked 2026-06-25 from AMSOIL Lookup, Pennzoil OATS, RockAuto, Purolator Part Finder, Valvoline Product Finder, and Castrol (Olyslager).
GMC Terrain oil specs by year
This table includes checked GMC Terrain model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 5.3 qt | 0W-20 | AMSOIL EA15K50 |
| 2024 | 5.3 qt | 0W-20 | CHAMP / LUBER-FINER PH10064 |
| 2023 | 5.3 qt | 0W-20 | Purolator L11403 |
| 2022 | 5.3 qt | 0W-20 | AMSOIL EA15K50 |
| 2021 | 5.3 qt | 0W-20 | CHAMP / LUBER-FINER PH10064 |
| 2020 Current page | 5.3 qt (multiple engines) | 0W-20 | AMSOIL EA15K50 |
| 2019 | 5.3 qt (multiple engines) | 0W-20 | AMSOIL EA15K50 |
| 2018 | 5.3 qt (multiple engines) | 0W-20 | AMSOIL EA15K50 |
| 2017 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2016 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2015 | 5 qt (multiple engines) | 5W-30 | CHAMP / LUBER-FINER P3244 |
| 2014 | 5 qt (multiple engines) | 5W-30 | CHAMP / LUBER-FINER P3244 |
| 2013 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2012 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2011 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
| 2010 | 5 qt (multiple engines) | 5W-30 | AMSOIL EA15K03 |
How we verified 2020 GMC Terrain oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-25.
This page checked 6 sources for the 2020 GMC Terrain. 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
- Cross-check pending
- Sources checked
- 6
- Last checked
- 2026-06-25
- Capacity: AMSOIL Lookup, Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager)
- Oil type: AMSOIL Lookup, Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager)
- Filter: AMSOIL Lookup, RockAuto, and Purolator Part Finder
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL Lookup | Capacity, Oil type, Filter | 2026-06-25 | Visit brand site |
| Pennzoil OATS | Capacity, Oil type | 2026-06-25 | Visit brand site |
| RockAuto | Filter | 2026-06-25 | Checked source |
| Purolator Part Finder | Filter | 2026-06-25 | Visit brand site |
| Valvoline Product Finder | Capacity, Oil type | 2026-06-25 | Checked source |
| Castrol (Olyslager) | Capacity, Oil type | 2026-06-25 | Visit brand site |
Where to buy
These are retailer search paths for your vehicle. The specs above are checked — use the retailer's vehicle selector at checkout to confirm before ordering.
This section may include affiliate or sponsored retailer links. They are purchase paths, not fitment evidence.
Walmart
Compare oil and filter listings for the 2020 GMC Terrain. Confirm capacity, viscosity, and filter part number before checkout.
Search 2020 GMC Terrain oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2020 GMC Terrain before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2020 GMC Terrain oil & filter →Amazon
Search Amazon listings for the 2020 GMC Terrain and check listing fitment notes against the specs above.
Search 2020 GMC Terrain oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2020 GMC Terrain and verify oil capacity, viscosity, and filter part number before ordering.
Search 2020 GMC Terrain oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.