Chevrolet Trailblazer EXT oil specs by year
The Chevrolet Trailblazer EXT (2005–2006) uses 7 qt of 5W-30 oil across all 2 model years covered here for the primary engine. Select a year below for the full record with filter part numbers and source notes.
Multiple engine options: The Chevrolet Trailblazer EXT was offered with 3 engine options across its history.
Open the exact year page and select your engine to see the correct capacity and viscosity for your vehicle.
| Year | Capacity | Oil type | Filter | Page |
|---|---|---|---|---|
| 2006 | 7 qt | 5W-30 | WIX 51522; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
| 2005 | 7 qt | 5W-30 | WIX 51522; AMSOIL EA15K01; AMSOIL EA15K02 Verified fit | Open record → |
Chevrolet Trailblazer EXT oil spec changes by year
Oil specs remained consistent across the 2005–2006 model years covered here. The primary engine uses 7 qt of 5W-30 throughout this range. Always open the exact year page and confirm the source notes before buying.
Capacity
7 qt
Same across all 2 listed years
Oil type
5W-30
Same across all 2 listed years
Filter brands
WIX, AMSOIL, Purolator
In checked records — open year page for part numbers
Chevrolet Trailblazer EXT oil — frequently asked questions
- What oil does the Chevrolet Trailblazer EXT take?
- The Chevrolet Trailblazer EXT takes 7 qt of 5W-30 oil across the 2005–2006 model years covered here. Always open the exact year page and confirm in your owner's manual before buying.
- Is the oil capacity the same for all Chevrolet Trailblazer EXT years?
- Yes. All 2 Chevrolet Trailblazer EXT model years covered here use 7 qt as the primary engine capacity. Confirm in your owner's manual before buying.
- Does the Chevrolet Trailblazer EXT have different oil specs for different engines?
- Yes. The Chevrolet Trailblazer EXT has been offered with multiple engine options (4.2L 6-Cyl, 5.3L V8, 6.0L V8). Each engine can have a different oil capacity and viscosity. Open the exact year page, select your engine, and confirm specs before buying.
- What oil filter fits the Chevrolet Trailblazer EXT?
- The most recent checked year lists WIX 51522; AMSOIL EA15K01; AMSOIL EA15K02 as a compatible oil filter for the Chevrolet Trailblazer EXT. Filter part numbers can change across model years — open the exact year page for the source-checked part number for your year.
Look up a specific Chevrolet Trailblazer EXT year
Select a model year to open the exact checked oil fitment record before ordering.