The 2014 Chevy Impala typically uses GM Dex-Cool Extended-Life coolant (the orange, ethylene glycol-based formula). Use a GM-approved Dex-Cool, usually available premixed in a 50/50 ratio with distilled water.
For most 2014 Impala models—regardless of whether you have the base four-cylinder or the V6—the cooling system is designed around Dex-Cool, GM’s long-life coolant. It’s important not to mix Dex-Cool with other types of coolant (such as green, silicate-based formulas) and to follow proper maintenance procedures, including front-to-back flushing if you’re switching from a different coolant. The exact variant and fill method can vary by engine option and region, so when in doubt consult the owner's manual or a GM dealer for the precise specification for your VIN. The sections below explain what to buy, how to check levels, and how to top up correctly.
Recommended coolant type and buying guidance
Before purchasing coolant, keep in mind Dex-Cool is GM’s orange, extended-life coolant. The easiest option is premixed Dex-Cool in a 50/50 mix with distilled water, ready to pour.
- GM Dex-Cool Extended-Life coolant (orange), the standard coolant for most 2014 Impala engines.
- Premixed 50/50 Dex-Cool with distilled water for convenience and correct concentration.
- Do not mix Dex-Cool with green or other non-OAT (organic acid technology) coolants; if the current coolant type is unknown or different, have the system flushed before refilling with Dex-Cool.
- If you must buy concentrate, mix it to a 50/50 ratio with distilled water before adding to the cooling system.
Using the correct Dex-Cool and maintaining the proper 50/50 mixture helps prevent corrosion, scale buildup, and overheating in your Impala’s cooling system. If your vehicle has a unique engine option or regional specification, verify guidance with the manual or a GM service adviser.
How to check and top up the coolant
To safely check the coolant level and add more if needed, follow these steps:
- Park on level ground and let the engine cool completely before opening the cooling system.
- Locate the coolant reservoir and look at the level markings (MIN and MAX) on the side.
- If the level is below the MIN line, add Dex-Cool to bring it up to the MAX line. Use premixed 50/50 coolant unless you have a Dex-Cool concentrate and are prepared to mix it with distilled water to 50/50.
- Do not open the radiator cap when the engine is hot. If your Impala uses a separate reservoir cap, open only when cool.
- After adding coolant, replace the cap securely and start the engine. Allow it to reach normal operating temperature, then recheck the level and look for leaks or air bubbles in the reservoir. If necessary, top up again to the MAX line.
- Dispose of any old coolant properly and never mix leftover coolant with other automotive chemicals.
Maintaining the correct Dex-Cool level and concentration helps ensure reliable temperature control and protection against corrosion within the cooling system. If you notice persistent low levels, leaks, or overheating, have the cooling system inspected by a qualified technician.
Additional considerations
If you’re unsure about the coolant currently in your Impala, or if you notice white milky residue, oil contamination, or unusual engine temperatures, seek professional service. Dex-Cool is designed to be long-lasting, but it requires proper handling and periodic checks to maintain cooling efficiency.
Summary
For a 2014 Chevy Impala, the recommended coolant is GM Dex-Cool Extended-Life (orange), typically used in a premixed 50/50 solution. Do not mix with non-Dex-Cool or green coolant, and perform regular checks to keep the cooling system at its proper level. When in doubt, consult the owner’s manual or a Chevrolet dealer to confirm the exact specification for your vehicle’s engine and region.