The 2020 Chevrolet Equinox uses GM Dex-Cool, an orange, ethylene glycol-based long-life coolant (a HOAT formulation). This is GM’s standard coolant for most modern engines in their lineup.
In practice, you should use Dex-Cool or a Dex-Cool-compatible extended-life coolant. Do not mix Dex-Cool with standard green coolant or with other non-Dex-Cool products unless the label explicitly states compatibility. Coolant should typically be used in a 50/50 premixed ratio with distilled water, unless you’re using a premixed version, and you should follow the product’s instructions or the vehicle’s owner manual when topping up or flushing the system.
Which coolant options work in the 2020 Equinox?
Here are the common options you’ll encounter when shopping for the correct coolant. Look for labels that indicate Dex-Cool compatibility or GM Dex-Cool; avoid generic green antifreeze unless it clearly states compatibility with Dex-Cool.
- GM Dex-Cool Extended Life Coolant (orange, ethylene glycol-based HOAT). This is the standard factory-recommended coolant for many GM vehicles, including the Equinox.
- Dex-Cool-compatible extended-life coolants from other major brands that explicitly label "Dex-Cool compatible" or "Dex-Cool Extended Life." Verify the label to ensure compatibility.
- 50/50 premixed Dex-Cool or concentrated Dex-Cool that you dilute with distilled water per product directions (if buying concentrate). Always mix according to the label.
In short, choose a Dex-Cool or Dex-Cool-compatible extended-life coolant and maintain the recommended 50/50 mix unless your product specifies a different ratio. Avoid using green or universal coolants that aren’t explicitly Dex-Cool compatible, as they can cause corrosion or other issues in GM cooling systems.
Summary
The 2020 Equinox requires Dex-Cool, GM’s orange, HOAT coolant. Use Dex-Cool or a compatible extended-life product, follow the 50/50 mix guidance, and avoid mixing with non‑Dex-Cool formulations. If in doubt, consult the owner’s manual or a Chevrolet dealer for confirmation.