Checked oil specs by engine
2005 Chevrolet Blazer oil capacity, type & filter
The 2005 Chevrolet Blazer takes 4.5 qt of 5W-30 oil.
Applies to checked engine: 4.3L V6.
AMSOIL EA15K29 is copied into the checkout checklist below. Other listed filters are source-backed alternatives.
2005 Chevrolet Blazer oil specs: capacity conditions and filter notes
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 2005 Chevrolet Blazer
Supported by AMSOIL Lookup, Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager).
Supported by Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager).
Supported by AMSOIL Lookup, RockAuto, Purolator Part Finder, and K&N Filters.
7 checked source rows for the 2005 Chevrolet Blazer.
Before ordering for this 2005 Chevrolet Blazer
- Capacity
- 4.5 qt
- Oil type
- 5W-30
- Filter
- AMSOIL EA15K29
Source check: Last checked 2026-06-25 from AMSOIL Lookup, K&N Filters, Pennzoil OATS, RockAuto, Purolator Part Finder, Valvoline Product Finder, and Castrol (Olyslager).
Chevrolet Blazer oil specs by year
This table includes checked Chevrolet Blazer model years available in our database.
| Year | Capacity | Oil type | Filter |
|---|---|---|---|
| 2025 | 5.3 qt (multiple engines) | 0W-20 | WIX 51032 |
| 2024 | 5.3 qt (multiple engines) | 0W-20 | WIX 51032 |
| 2023 | 5.3 qt (multiple engines) | 0W-20 | WIX 51032 |
| 2022 | 5.3 qt (multiple engines) | 0W-20 | PRO-TEC PXL10351 |
| 2021 | 5.3 qt (multiple engines) | 0W-20 | PRO-TEC PXL10351 |
| 2020 | 5.3 qt (multiple engines) | 0W-20 | WIX 51032 |
| 2019 | 5 qt (multiple engines) | 0W-20 | AMSOIL EA15K50 |
| 2005 Current page | 4.5 qt | 5W-30 | AMSOIL EA15K29 |
How we verified 2005 Chevrolet Blazer oil data
How we verify fitmentChecked fitment data. Last checked: 2026-06-25.
This page checked 7 sources for the 2005 Chevrolet Blazer. 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
- 7
- Last checked
- 2026-06-25
- Capacity: AMSOIL Lookup, Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager)
- Oil type: Pennzoil OATS, Valvoline Product Finder, and Castrol (Olyslager)
- Filter: AMSOIL Lookup, RockAuto, Purolator Part Finder, and K&N Filters
| Source | Supports | Checked | Link |
|---|---|---|---|
| AMSOIL Lookup | Capacity, Filter | 2026-06-25 | Visit brand site |
| K&N Filters | 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 |
2005 Chevrolet Blazer oil FAQ
Is the oil capacity measured with or without the filter?
Capacity condition matters. With filter includes a new filter. Service fill is the typical drain-and-fill amount. Dry fill is for a fresh empty engine only.
Why should I confirm before buying?
Retailer catalogs can update separately. Confirm the exact 2005 Chevrolet Blazer selector at checkout before you buy.
Do I also need to match the OEM oil approval?
Yes. Viscosity is only one part of the oil spec. Match the oil approval listed in your owner's manual or on the bottle before checkout.
How often should I change the oil on a 2005 Chevrolet Blazer?
Use the oil-life monitor or the interval in your owner's manual for this engine. Severe service can require a shorter interval.
Do I need a new drain plug gasket?
Replace it when your vehicle uses a serviceable gasket or crush washer. Confirm the gasket size and drain plug torque from the service manual or parts counter.
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 2005 Chevrolet Blazer. Confirm capacity, viscosity, and filter part number before checkout.
Search 2005 Chevrolet Blazer oil & filter →AutoZone
Use AutoZone's vehicle selector for the 2005 Chevrolet Blazer before checkout to confirm oil capacity, viscosity, and filter fitment.
Search 2005 Chevrolet Blazer oil & filter →Amazon
Search Amazon listings for the 2005 Chevrolet Blazer and check listing fitment notes against the specs above.
Search 2005 Chevrolet Blazer oil & filter →O'Reilly
Open O'Reilly's fitment search for the 2005 Chevrolet Blazer and verify oil capacity, viscosity, and filter part number before ordering.
Search 2005 Chevrolet Blazer oil & filter →Look up another vehicle
Find checked oil capacity, type, and filter data by exact year, make, and model.