Most modern Impalas use Dex-Cool orange extended-life coolant; the exact specification depends on the model year, so check the owner's manual or the under-hood label for the precise requirement.
Understanding the coolant landscape for the Impala
GM’s coolant strategy has evolved over generations. Dex-Cool has been the standard for many GM vehicles since the late 1990s, but some earlier models used conventional green coolant. Always use a product that matches the factory specification and avoid mixing different coolant chemistries unless you flush the system first.
Modern Impalas (1996–present)
Guidance for owners of mid- to late-1990s through 2020s Impalas about what coolant to use and how to maintain it.
- Dex-Cool (orange; Organic Acid Technology) is the typical coolant for GM vehicles in this era, including many Impalas.
- Most sellers offer pre-mixed 50/50 Dex-Cool; concentrated Dex-Cool is also available, but requires precise mixing with distilled water per GM guidelines.
- Do not mix Dex-Cool with conventional green IAT coolant; if cross-contamination has occurred, a full cooling-system flush is recommended before refilling.
- Use only GM-approved Dex-Cool or a Dex-Cool-compatible coolant labeled for GM vehicles.
Conclusion: For most modern Impalas, Dex-Cool is appropriate, provided you follow the year-specific guidance on your vehicle.
Older Impalas and classic models
Earlier generations typically used traditional green coolant (IAT) or blue/orange formulations before Dex-Cool became standard. Verifying the exact specification from the owner's manual is essential for classics.
- Green conventional coolant (IAT) is common in pre-Dex-Cool GM vehicles.
- If the car is a pre-1996 model, expect a different specification than the Dex-Cool standard of later years.
Conclusion: If you own a pre-Dex-Cool Impala, expect conventional green coolant; verify the exact specification before topping up or refilling.
Maintenance essentials and up-top tips
Practical steps to ensure you’re using the correct coolant and maintaining the system safely.
- Check the owner's manual or the expansion tank label for the exact coolant specification (Dex-Cool vs. conventional IAT).
- Choose GM-approved coolant that matches the specification; Dex-Cool or a Dex-Cool-compatible product labeled for GM usage is typically required.
- If you’re adding coolant, use distilled water for concentrates or opt for premixed 50/50 Dex-Cool to avoid incorrect dilution.
- Never mix Dex-Cool with non-Dex-Cool coolants; if contamination is suspected, perform a full system flush before refilling.
Aftercare tip: Always operate the engine with the cooling system pressurized and cool before opening any caps, and dispose of old coolant responsibly.
Summary
To recap, the Chevrolet Impala most commonly relies on Dex-Cool orange extended-life coolant in modern generations, but the exact type can vary by year and engine. Always confirm with the vehicle’s manual or a GM service label and avoid mixing coolant types. When in doubt, consult a professional mechanic or your local dealer.
What coolant goes in a Chevy Impala?
Prestone – Antifreeze & Coolant: 50/50 Ready-to-Use, Original Equipment North American Orange, 1 Gallon (Part No. AF6700)
Does Chevy use a special coolant?
Every vehicle manufacturer, including Chevrolet has developed its own coolant or requires a specific coolant that is unique to individual years and models.
What coolant does a 2017 Chevy Impala take?
Prestone – Antifreeze & Coolant: 50/50 Ready-to-Use, Dex-Cool Compatible, 1 Gallon (Part No. AF850)
What coolant does my 2014 Chevy Impala take?
2014 Chevrolet Impala - Coolant/Antifreeze, Dexcool; Extended Life; 1 Gallon; Mix With Water Per Label Instructions 10-101 by AC Delco®