The 2013 Chevy Malibu typically uses Dex-Cool extended-life coolant (GM’s orange, silicate-free formula). It is designed to be used in a 50/50 mix with distilled water, or you can buy premixed Dex-Cool. Do not mix Dex-Cool with green coolant or other non-Dex-Cool formulas unless the product explicitly states compatibility.
Coolant specification and compatibility
Dex-Cool is GM’s long-life coolant designed for aluminum engines and extended service intervals. For the 2013 Malibu, GM generally requires Dex-Cool or a Dex-Cool-compatible coolant that is silicate-free. Mixing Dex-Cool with non-Dex-Cool formulas can lead to deposits and reduced protection. Always confirm the exact specification for your engine variant in the owner's manual.
Dex-Cool at a glance
Dex-Cool is an orange, silicate-free coolant that lasts longer than conventional green antifreeze. It is typically used in a 50/50 ratio with distilled water, or you can purchase premixed Dex-Cool. Never mix with green coolant unless the product page explicitly states compatibility.
Approved options to buy
- GM Dex-Cool Extended Life Antifreeze/Coolant (orange)
- Prestone Dex-Cool Extended Life Antifreeze, ready-to-use or concentrate
- Any universal coolant labeled as Dex-Cool compatible and silicate-free
Note: Always verify packaging for "Dex-Cool compatible" and "silicate-free" labeling; using the wrong coolant can reduce cooling efficiency or cause deposits.
Maintenance and replacement guidance
Here are practical steps to check, top off, or replace the Malibu’s cooling system with Dex-Cool.
- Ensure the engine is completely cool before opening the radiator cap or reservoir to avoid scalding from hot coolant.
- Locate the coolant reservoir and check the level between the MIN and MAX marks when the engine is cold.
- If adding, use a premixed Dex-Cool coolant or prepare a 50/50 mix with distilled water as directed on the bottle. Do not mix with green antifreeze unless the entire system has been flushed and the manual allows it.
- If the reservoir is dirty or the coolant looks rusty or has debris, it’s a good time to flush the cooling system and replace with fresh Dex-Cool; this is best done by a professional if you’re unsure.
- After refilling, run the engine to operating temperature with the radiator cap off to vent air, then recheck levels once cooled and top off if necessary.
Always dispose of old coolant responsibly and store new coolant sealed away from children and animals.
Summary
The 2013 Chevy Malibu uses Dex-Cool extended-life coolant (orange) in a 50/50 mix with distilled water or premixed Dex-Cool. Use Dex-Cool-compatible, silicate-free formulations and avoid mixing with conventional green antifreeze unless explicitly allowed. When in doubt, consult the owner's manual or a GM dealership for your specific engine variant.