Engine coolant (commonly called antifreeze) runs continuously through your engine to absorb heat and carry it to the radiator, where it cools before cycling back. Without proper coolant, your engine would freeze in winter, overheat in summer, and corrode from the inside out.
Mopar vehicles require specific coolant types based on their age and engine specifications. Using the wrong coolant or mixing incompatible types can cause catastrophic damage that will void your warranty.
Types of Vehicle Coolants
Modern coolants are categorized by their additive technology. The three main types are IAT, OAT, and HOAT.
IAT (Inorganic Additive Technology)
IAT is the traditional, old-school coolant that is typically green. It relies on silicates and phosphates for corrosion protection and is best suited for older vehicles manufactured before the mid-1990s.
IAT requires frequent changes, usually every two years or 30,000 miles. This is the conventional low-silicate coolant you’ll find in most older Mopar vehicles.
OAT (Organic Acid Technology)
OAT is a modern, long-life coolant found in many newer vehicles. It is free of silicates and phosphates and offers extended protection against corrosion. OAT coolants can appear orange, red, yellow, pink, or purple.
OAT is typically changed every five years or 50,000 miles, though some formulations are rated for 10 years or 150,000 miles. Mopar switched many vehicles to OAT coolant around 2013.
HOAT (Hybrid Organic Acid Technology)
HOAT is a hybrid technology that combines OAT with some silicates for added aluminum protection. HOAT coolants typically appear orange, yellow, turquoise, or pink. This technology provides the benefits of both IAT and OAT.
HOAT is a long-lasting coolant, typically changed every five years or 50,000 miles, with some manufacturers specifying intervals as long as 10 years or 150,000 miles.
Very important: Coolants of different technologies (OAT, HOAT, or IAT) are not compatible and cannot be interchanged. Mixing dissimilar coolants, even in small amounts, can trigger a chemical reaction with catastrophic results.
Do not rely on color to identify coolant type. Both OAT and HOAT coolants can appear orange or yellow. Colors are often just marketing dyes and are unreliable indicators of coolant technology.
This article will analyze Mopar coolant as equivalents in the OAT and HOAT categories.
Note When You Switch to a New Coolant/ Antifreeze
Check Your Owner’s Manual and VIN
Before switching or even topping off coolant, you must identify the exact type required for your vehicle. Always use the coolant recommended by your manufacturer.
Check your owner’s manual for the required coolant type (OAT or HOAT) and any specific Chrysler Material Standard (MS) numbers, such as MS-12106 or MS-90032.
If your vehicle was manufactured during a transition period (such as early 2013 models that might have HOAT instead of the later OAT fill), consult your dealership and have them look up the correct coolant using your Vehicle Identification Number (VIN).
Flush Your Car’s AC System
A thorough flush is crucial because even a small amount of residual HOAT can cause problems when mixed with OAT, or vice versa. Flush the system until the water runs clear. Some procedures involve removing the block plugs and running water through the radiator to flush out sediment.
Since switching coolants is a major maintenance task, consider replacing the thermostat and gasket as well.
Mopar HOAT Coolant Equivalent
Mopar 68048953AB
Zerex G05
Motorcraft Gold Coolant
Mopar 68048953AB Antifreeze/Coolant
The Mopar 68048953AB is a genuine Mopar antifreeze coolant designed to meet strict factory specifications for reliability and durability. It is suitable for a range of vehicles including Chrysler 300, Sebring, Town & Country, Dodge Charger, Dakota, Durango, Jeep Grand Cherokee, Liberty, Wrangler, and Ram models such as the 1500 and 2500 trucks.
The Mopar 68048953AB antifreeze coolant is formulated using an ethylene glycol base. It also includes other components such as diethylene glycol and disodium tetraborate. This formulation is common in automotive coolants as ethylene glycol effectively lowers the freezing point and raises the boiling point of the coolant.
Mopar HOAT Coolant MS-9769
Zerex G05
Zerex G05 is a Hybrid Organic Acid Technology (HOAT) coolant formulated with reduced pH. It uses a lower-silicate, phosphate-free European technology that provides excellent protection for all cooling system metals, including aluminum.
Zerex G05 is unique for its claims to long-life protection: up to 5 years or 160,000 km in light-duty use and its compatibility with a wide range of modern engines and coolants.
Zerex G05 is fully suitable for Mopar vehicles that require Chrysler specifications including Chrysler MS 7170 and MS 9769. This makes Zerex G05 a reliable choice if you own a Chrysler, Dodge, Jeep, or Ram.
Zerex G05 is formulated as a concentrate. You can mix tap water with it but itโs best to use demineralized or distilled water to create a 50/50 solution.
Zerex G05 Phosphate Free Antifreeze/Coolant
Motorcraft Gold Coolant
Motorcraft Gold Coolant is a premium ethylene glycol-based antifreeze coolant formulated specifically to meet Ford’s WSS-M97B51-A1 specification. Because MS-9769 (Moparโs standard) is very close to WSS-M97B51-A1, some Mopar owners use this coolant. These standards are also very similar to Cummins 14603 and ASTM D 6210.
What makes Motorcraft Gold Coolant special is its advanced corrosion protection and freeze/boil protection capabilities, providing freeze protection down to -34ยฐF (-36.7ยฐC) and boil-over protection up to 265ยฐF (129ยฐC) when mixed 50/50 with water. It is designed for long-life use, typically lasting up to 5 years or 150,000 miles under normal conditions.
Motorcraft Gold Coolant
Mopar OAT Coolant Equivalent
Mopar OAT Coolant
Zerex DEX-Cool
OEM Recochem Extended Life
Mopar antifreeze coolant 10 year 150 000 mile formula OAT
Mopar OAT Coolant is a genuine OEM product that meets the strict cooling system requirements of engines requiring Organic Acid Technology (OAT). It is designed for maximum durability and peak cooling system performance for up to 10 years or 150,000 miles.
The Mopar OAT coolant uses advanced chemistry that is both silicate-free and phosphate-free. This formulation reduces corrosion risk and prevents deposits from building up inside the engine cooling system.
Mopar OAT coolant comes in two forms labeled MS-90032 and MS-12106.
MS-90032 requires mixing at a minimum 50% concentration with distilled water and focuses on extended maintenance intervals. It is silicate-free and designed to prevent corrosion and deposits in the cooling system.
MS-12106 is the original formulation but was eventually superseded by the newer MS-90032 standard. Both are interchangeable with no problem and will protect your car from extreme temperature regardless of high or low they get.
Hereโs the catch though: Their packaging is very similar so read the labels carefully before clicking checkout on Amazon.
Mopar antifreeze coolant 10 year 150 000 mile formula OAT
Zerex DEX-Cool
Zerex DEX-Cool, manufactured by Valvoline, is designed for up to 5 years or 150,000 miles. Zerex DEX-Cool carries official approvals from major manufacturers. It meets various requirements such as GM 6277Ml from General Motors and MS-12106 from Chrysler.
If you see DEX-Cool or GM 6277M listed on the bottle, it’s specifically engineered for 5-year or 150,000-mile service intervals. It stands out because of its orange dye (don’t mix it up with conventional green coolants or traditional formulations).
Zerex DEX-Cool uses a concentrate formula that requires proper mixing before use. This allows users to adjust the coolant concentration for optimal freezing and boiling protection.
Zerex DEX-Cool
OEM Recochem Extended Life Orange
OEM Recochem Extended Life Orange is designed for long-lasting performance and efficient heat transfer for up to 5 years or 150,000 miles.
The Recochem Extended Life Orange uses advanced OAT chemistry that is free of silicates, borates, nitrates, nitrites, phosphates, and amines. This formulation minimizes deposit buildup and provides comprehensive protection against rust, corrosion, and pitting caused by cavitation
OEM Recochem Extended Life Orange carries official approvals from major manufacturers. These include GM 6277M, Chrysler MS-12106, and Ford WSS-M97B44-D. Very important: this is a pure OAT coolant and should not be mixed with conventional coolants that are phosphate-, silicate-, or borate-based.
While both OEM Recochem Extended Life Orange and Zerex DEX-Cool are dyed orange, you can’t just pour any orange coolant into your vehicle.
OEM Recochem Orange is pre-diluted: you donโt need to add water to it. But keep in mind that OEM Recochem also sells concentrates in other colored labels.
Recochem OEM GM Orange Premium Antifreeze 50/50 Extended Life
Final Words
Different vehicles require different coolants depending on the manufacturersโ recommendation. The older cars also have requirements and specifications that may differ from the newer versions. Even if they are the same make, you may need to use different coolants/antifreeze for each model.
The best way to know the type of coolant you need is to check your vehicle’s manual. Some websites, such as that of OEM’s, will let you look up the compatible coolant with your car’s year, make, and model.
Related Reads
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- Ford Refrigerant and AC Compressor Oil Capacity Charts [With Oil Type Recommendations] Understand recommended oil types for Ford AC compressors, helping you choose compatible coolant alternatives for Mopar OAT and HOAT – Find out more.
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