What type of coolant does a 2007 Chevy Cobalt take?
The 2007 Chevy Cobalt uses Dex-Cool, GM-approved orange long-life coolant. It is typically available as pre-mixed 50/50 with distilled water or as a concentrate to mix yourself. Do not use green or other colors of coolant or mix different types.
Dex-Cool is GM’s organic acid technology (OAT) coolant designed for many GM vehicles of this era. Using the correct coolant helps prevent corrosion, deposits, and overheating, and it supports the cooling system’s longer service intervals. This article explains what to buy, how to verify compatibility, and how to refill safely.
What to buy
Before purchasing coolant, confirm you are getting the Dex-Cool product designed for GM vehicles, and decide whether you want premixed or concentrate. The points below cover the essentials to look for on the label.
- Dex-Cool or GM-approved orange OAT coolant (look for “Dex-Cool” on the label)
- Option to buy pre-mixed 50/50 with distilled water, or concentrate to be diluted with distilled water
- Formulations labeled as compatible with GM Dex-Cool; avoid green silicate-based coolants
- Check the engine’s capacity to determine how much you’ll need for a refill or a full flush
Using the correct product minimizes incompatibility risks and protects the aluminum components in the Cobalt’s cooling system.
Compatibility note
GM recommends Dex-Cool for the 2007 Cobalt. While some universal coolants claim broad compatibility, sticking with Dex-Cool specifically helps ensure seals and cooling performance remain reliable over time.
How to refill or flush safely
Whether topping off or performing a full coolant flush, follow these best practices to avoid air pockets and leaks and to protect the cooling system.
- Park on a level surface and let the engine cool completely before opening the radiator cap
- Use the correct 50/50 mix (premixed) or mix concentrate with distilled water per the label
- Bleed the cooling system if required by the model to remove air pockets
- Dispose of used coolant at an approved facility; never pour it down the drain
Adhering to proper filling and flushing procedures helps maintain optimal operating temperatures and prevents potential damage from improper cooling.
Where to find official guidance
For model-specific capacity and procedures, consult the owner's manual, GM service manuals, or your dealer. You can also refer to GM service bulletins that detail Dex-Cool compatibility for the 2007 Cobalt.
Summary
The 2007 Chevy Cobalt requires Dex-Cool orange long-life coolant (GM-approved OAT). Choose Dex-Cool or a GM-approved orange coolant in a 50/50 premixed or concentrate form, and avoid mixing with green or other types. Follow proper flushing, handling, and disposal practices, and consult the manual or dealer for exact capacities and steps.
