What oil does a 2.8 L Colorado take?
The 2.8 L Duramax diesel in Chevrolet Colorado uses Dexos2‑certified full-synthetic motor oil, typically 5W-40, with a capacity of about 6 quarts (5.7 L) including the filter. Always confirm the exact specification for your year and climate in the owner’s manual or on the GM lubricant guide.
Oil specifications for the 2.8 L Duramax Colorado
Key facts about the lubrication requirements for this GM diesel engine:
- Oil type: Dexos2‑certified full‑synthetic motor oil. The standard grade for most climates is 5W‑40. Always verify the grade specified for your model year in the owner’s manual or GM’s lubricant guide.
- Oil capacity: Approximately 6 quarts (about 5.7 L) with the filter. Some year‑to‑year variations may exist; check the dipstick, label under the hood, or the manual for your exact figure.
- Oil specification requirement: Use Dexos2‑certified oil; non‑Dexos2 oils may not meet GM warranty and lubrication requirements for the Duramax.
- Change interval guidance: Follow the GM Oil Life Monitoring System. Synthetic Dexos2 oils often allow longer intervals under normal driving, but driving conditions can vary; rely on the monitor to determine when to change.
Bottom line: For most Colorado 2.8 L Duramax models, use Dexos2 5W‑40 synthetic oil, about 6 quarts, and time changes with the GM Oil Life Monitor. Yearly and climate variations can apply, so consult the manual or a dealer if you’re unsure.
Climate considerations and alternative grades
While Dexos2 5W‑40 is the standard recommendation, certain climates or model years may warrant an alternative Dexos2 grade. Always verify the exact specification for your vehicle year and region.
- Cold climates: In some cases, Dexos2 0W‑40 may be acceptable for very cold starts if your manual or dealer specifies it for your year. Confirm the approved grade for your model.
- Other conditions: For extreme heat or heavy use, the standard 5W‑40 Dexos2 remains the recommended grade unless your GM documentation instructs otherwise.
When shopping for oil, prioritize Dexos2 certification and the grade specified for your year. Using the correct oil helps protect the engine and preserves warranty coverage.
How to confirm the exact specification for your Colorado
To ensure you have the precise requirements for your vehicle, consult these sources:
- Owner’s manual for your specific model year and trim
- Under-hood oil cap or dipstick label, which often lists the recommended viscosity
- GM’s official lubricant specification database or your dealer/service department
These sources will confirm the exact Dexos2 grade and capacity for your 2.8 L Colorado, ensuring you choose the right product for your engine and climate.
Summary
The Chevrolet Colorado’s 2.8 L Duramax diesel generally requires Dexos2‑certified full‑synthetic oil, commonly 5W‑40, with an approximate capacity of 6 quarts (5.7 L) including the filter. Always verify the precise grade and quantity for your year from the owner’s manual or GM’s official guidance, and rely on the GM Oil Life Monitor to time oil changes. If in doubt, contact a Chevrolet dealership or certified technician for year‑specific recommendations.
