What kind of coolant does a 2000 Chevy Blazer take?
The 2000 Chevy Blazer generally uses Dex-Cool Extended Life coolant (the orange, OAT type) in its cooling system, typically in a 50/50 mix with distilled water. This is GM’s long-life coolant designed for aluminum engines and extended service intervals.
In this article, we explain the exact coolant type for the 2000 Blazer, how to mix it properly, and maintenance tips to keep the cooling system in good shape across common engine options and climates.
Coolant specification for the 2000 Blazer
Most 2000 Blazers with the 4.3L V6 or the 5.7L V8 use Dex-Cool Extended Life Antifreeze/Coolant (orange color). Dex-Cool is a long-life coolant based on organic acid technology (OAT) designed to last longer between changes than conventional green coolant. GM typically recommends a service interval of about five years or 150,000 miles, though you should check your owner's manual for the exact guidance on your engine option and driving conditions.
What to buy
Before you shop, keep these notes in mind to ensure you purchase the correct product:
- Dex-Cool Extended Life Antifreeze/Coolant (orange, OAT), GM-approved or OEM-equivalent.
- Ready-to-use premixed 50/50 or concentrate that you mix with distilled water to achieve 50/50.
- A product labeled for GM Dex-Cool or GM Original Equipment and suitable for aluminum engine components.
Do not mix Dex-Cool with conventional green coolant. If your system currently contains green coolant, a full flush is generally recommended before refilling with Dex-Cool to avoid potential incompatibilities.
How to mix and fill
Many 2000 Blazers use Dex-Cool premixed in a 50/50 ratio, but if you purchase concentrate, mix it with distilled water at a 1:1 ratio to achieve a 50/50 mixture. Use distilled water to prevent mineral deposits that can affect cooling performance.
- Ensure the engine is completely cool before opening the cooling system.
- Fill the reservoir or radiator with the 50/50 coolant mix until at the proper level.
- Bleed the cooling system if required by following the service manual procedures for your engine configuration.
Note: Some 2000 Blazer configurations may have slightly different bleed procedures. Always consult the owner’s manual for your exact setup.
After filling, recheck for leaks and verify the level once the engine reaches normal operating temperature and the system has had time to circulate.
Maintenance interval and tips
To maximize cooling system life, follow these guidelines related to Dex-Cool in a 2000 Blazer:
- Replace Dex-Cool every 5 years or 150,000 miles, whichever comes first, as per GM guidelines for long-life coolant.
- Regularly inspect hoses, the radiator, and the thermostat for wear or leaks; check coolant level monthly in extreme climates.
- If you ever mix in a different coolant type, perform a complete flush before refilling with Dex-Cool to avoid chemical incompatibilities.
Following these practices helps prevent overheating, corrosion, and deposit buildup that can affect cooling performance over time.
Summary
The 2000 Chevy Blazer typically uses Dex-Cool Extended Life Antifreeze/Coolant (orange, OAT) in a 50/50 mix with distilled water. Purchase GM-approved Dex-Cool, avoid mixing with green coolant, and follow the recommended replacement interval of about 5 years or 150,000 miles. Always refer to the owner’s manual for engine-specific guidance and bleed procedures.
What kind of coolant for a 2000 Chevy Blazer?
Prestone Original Equipment (OE) North American orange 50/50 Antifreeze/Coolant.
What kind of coolant does a Chevy Blazer take?
The Chevy Blazer uses Dex-Cool or another compatible orange, OAT (Organic Acid Technology) 50/50 pre-mixed coolant. It's essential to use the correct type for your specific model year to avoid engine damage, and for the most accurate information, consult your owner's manual.
This video demonstrates how to check and fill coolant in a Chevy Blazer: 57sChad WilliamsYouTube · Apr 26, 2024
Coolant types for Chevy Blazer
- Dex-Cool: This is the specific coolant recommended by GM for most modern Blazers. It is an orange, Organic Acid Technology (OAT) antifreeze.
- 50/50 pre-mixed: The coolant should be a 50/50 mix of coolant and distilled water. You can buy it pre-mixed or mix a concentrated version yourself.
- Color: While orange is the standard for Dex-Cool, the color of coolant doesn't always indicate its type, so always check the product's specifications for compatibility, says Bill Estes Chevrolet GMC.
- Other options: For older Blazers, you may be able to use other types like P-HOAT (Phosphated Hybrid Organic Acid Technology), but you must verify compatibility with your specific model and consult your owner's manual first.
Important considerations
- Check your owner's manual: The most reliable source for coolant information is your owner's manual.
- Flush and refill: If you are performing a coolant flush, ensure you use the correct type for your Blazer and flush the system completely before refilling.
- Do not mix types: Mixing different types of coolant can cause a chemical reaction, leading to sludge and engine damage.
Does Chevy use a special coolant?
Every vehicle manufacturer, including Chevrolet has developed its own coolant or requires a conspicuous coolant that is unique to particular years and models. There are many colors of coolants to help distinguish each including yellow, red, green, blue, purple and orange.
What kind of coolant does a 2002 Chevy Blazer take?
Dex-Cool 50/50 prediluted extended life antifreeze/coolant.
