Does Chrysler use special antifreeze?

Yes. Chrysler recommends using Mopar antifreeze/coolant that meets its Type 2 HOAT specification, typically sold as Mopar Antifreeze/Coolant Type 2 HOAT in both 50/50 pre-diluted and concentrate forms.

What makes Chrysler's antifreeze different

Chrysler’s engines are designed to run with a specific coolant formulation that protects aluminum components and the cooling system over the long term. The official Mopar Type 2 HOAT coolant is tested to Chrysler’s standards and is intended to provide consistent corrosion protection and heat transfer across modern engines found in Chrysler, Dodge, Jeep, and Ram vehicles. Using non-approved coolant can affect performance, corrosion protection, and may impact warranty coverage.

Approved Mopar coolant options

The following Mopar options cover the majority of current Chrysler Group vehicles. Choose the one that matches your manual and the supply you have access to, and avoid mixing brands.

• Mopar Antifreeze/Coolant Type 2 HOAT — 50/50 Pre-Diluted (orange). The standard, long-life coolant recommended for most modern Chrysler, Dodge, Jeep, and Ram engines.


• Mopar Antifreeze/Coolant Type 2 HOAT — Concentrate (to be diluted to 50/50). Used where pre-diluted supply is not available; follow the dilution instructions in the service manual.

These two options are designed to meet Chrysler’s Type 2 HOAT specification and cover the vast majority of contemporary models. Some older models or regional variations may use different formulations, so always check the owner’s manual or consult a dealer for model-specific guidance.

Guidance on maintaining and replacing coolant

To ensure proper cooling system performance, follow these guidelines and stick to Mopar-approved products where possible.

• Never mix Mopar Type 2 HOAT with non-HOAT coolants or with Dex-Cool (GM) or other brands, as incompatible chemistries can cause corrosion and deposits.


• Use coolant that clearly meets Chrysler’s Type 2 HOAT specification. If topping up, match the same product and specification as the existing coolant.


• Adhere to the service intervals recommended by the vehicle’s manual. Many modern Chrysler engines are designed for long-life coolant, but harsh climates or heavy-duty use can affect intervals.

Color is not a definitive indicator

Although Mopar Type 2 HOAT coolant is commonly orange, color alone cannot confirm compatibility. Always rely on the product label, part number, or the vehicle manual to verify the specification.

Concluding note: when in doubt, consult a dealer or a qualified technician to confirm the correct coolant for your specific model and year.

Summary

Chrysler does use a “special” antifreeze in the sense that it prescribes Mopar Type 2 HOAT coolant for most modern engines. Use only Mopar-approved coolant that matches the Type 2 HOAT specification and follow the owner’s manual for dilution, replacement intervals, and service guidance. Avoid mixing brands, and when replacing coolant, verify model-specific requirements with a dealer to protect engine performance and warranties.

Does Chrysler use orange coolant?

It can be mixed with any orange colored Organic Acid Technology (OAT) coolant in newer GM, Opel, Daewoo and Saab vehicles, as well as with antifreeze/coolant in Ford and Chrysler vehicles requiring an orange colored OAT coolant.

Does it matter what antifreeze coolant I use?

Yes, it absolutely matters what antifreeze you use, as using the wrong type can cause serious engine damage due to chemical incompatibility. Different vehicles require specific formulas to protect against corrosion and other issues, and mixing incompatible types can create a gel-like substance that clogs the cooling system. Always consult your vehicle's owner's manual to determine the correct type for your car, as relying on color alone is no longer a reliable method for identification. 
Why the correct antifreeze is crucial

• Chemical compatibility: Coolants are made with different chemical additives to protect a specific engine's metals and seals. 
• Preventing damage: Using the wrong type can cause corrosion, damage gaskets and hoses, and lead to a clogged cooling system, requiring a complete flush and possible part replacement. 
• Modern vehicles require specific types: Newer vehicles often need specific formulas, like HOAT (Hybrid Organic Acid Technology), which vary widely in their exact composition. Relying on color is no longer a safe method for selection, as manufacturers use colors inconsistently. 

How to choose the right antifreeze

• Check the owner's manual: This is the most reliable source for identifying the correct coolant type for your vehicle. 
• Look for specific recommendations: Your manual may specify a particular type (e.g., IAT, OAT, HOAT) or even a recommended brand. 
• Avoid mixing: Never mix different types of antifreeze unless the product explicitly states it is a universal coolant and is compatible with your vehicle. 
• When in doubt, flush: If you are unsure what type of coolant is currently in your system, it is safest to have the system completely flushed and refilled with the correct, manufacturer-recommended product. 
• Consult a professional: If you are unsure about the correct type, a qualified mechanic can help identify the right one for your vehicle. 

What color is Chrysler antifreeze?

Chrysler uses different coolant colors depending on the model and technology, so it's best to check the owner's manual, but common colors include purple, orange, and yellow. Older models may use a reddish-orange HOAT coolant, while newer models often use purple OAT coolant, notes AutoZone.com and Casa Chrysler Jeep. For a definite answer, consult your vehicle's owner's manual or a Chrysler dealership, as mixing incompatible coolants can damage the system. 

• Purple: Commonly used in newer Stellantis (Chrysler, Jeep, Dodge) vehicles, including models like the Pacifica. 
• Orange: Used in some HOAT (Hybrid Organic Acid Technology) or OAT (Organic Acid Technology) coolants. 
• Yellow: Can be found in HOAT coolants, especially those from brands like Ford and Zerex. 
• Reddish-Orange: Chrysler's specific HOAT coolant is sometimes described as reddish-orange. 
• Gold: An original equipment (OE) coolant from some manufacturers is gold. 
• Green: This color is associated with older Inorganic Acid Technology (IAT) coolants. 

Important: Always verify the correct coolant type with your owner's manual to avoid compatibility issues.

What type of antifreeze does a Chrysler take?

ZEREX G05® is the automaker approved original chemistry used in newer Ford®, Chrysler® and Mercedes-Benz® automotive and diesel engines. Its Hybrid Organic Acid Technology (HOAT) chemistry combines the best of conventional and organic acid-based chemistry to provide the ultimate protection against rust and corrosion.