Chevrolet Colorado, GMT31XX (USA / CAN)
AdBlue (DEF) capacity & service interval
Chevrolet Colorado, GMT31XX (USA / CAN) uses AdBlue (DEF) with a capacity of 20,4 liters. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Colorado 2.8 Duramax (2015-2022) |
|
| Colorado 2.8 Duramax AWD (2015-2022) |
|
Additional Notes
- The Chevrolet Colorado 2.8 Duramax carries an AdBlue (DEF) tank capacity of 20.4 liters, a figure that applies to both the standard and AWD configurations across the 2015-2022 model years.
- A 20.4-liter DEF reservoir is considered a relatively generous tank size for a midsize pickup, as larger capacity generally means fewer refill stops between scheduled maintenance intervals under normal use conditions.
- The identical 20.4-liter capacity shared between the rear-wheel-drive and AWD variants indicates the drivetrain configuration had no bearing on the exhaust aftertreatment system's tank sizing in the Colorado 2.8 Duramax.
- The capacity figure of 20.4 liters is associated with normal use conditions, meaning the refill expectation is based on standard operating cycles rather than severe-duty or first-change-only scenarios.
- AdBlue is classified as part of the exhaust aftertreatment system, where the fluid is injected into the exhaust stream to reduce nitrogen oxide emissions through selective catalytic reduction, making the tank capacity directly relevant to emissions compliance intervals.