The 2021 Ram 2500, equipped with the powerful 6.7L Cummins turbo diesel engine, requires specific coolant for optimal performance and longevity. Using the incorrect coolant can lead to serious engine damage, so understanding the correct type and proper maintenance is crucial. This guide will delve into the specifics, addressing common questions surrounding coolant for this vehicle.
What type of coolant does a 2021 Ram 2500 6.7L Cummins use?
The 2021 Ram 2500 6.7L Cummins diesel engine requires HOAT (Hybrid Organic Acid Technology) coolant. Specifically, Ram recommends a long-life, extended-life coolant that meets FCA MS-9766 specification. This type of coolant is designed for extended drain intervals and offers superior protection against corrosion and cavitation in high-temperature, high-stress diesel engine applications. Do not use traditional green coolant (IAT - Inorganic Acid Technology), as it's incompatible and can lead to significant issues.
Where can I find the correct coolant for my 2021 Ram 2500?
You can find FCA MS-9766 compliant HOAT coolant at most auto parts stores, both online and brick-and-mortar locations. Look for brands that specifically state compliance with this specification. Checking the label carefully is vital to ensure you're purchasing the correct product. Your Ram dealership is another reliable source for the correct coolant.
How often should I change the coolant in my 2021 Ram 2500?
Ram's recommended coolant change interval for the 6.7L Cummins engine varies depending on operating conditions and usage. Consult your owner's manual for the precise recommendation tailored to your specific vehicle and driving habits. However, in general, extended-life coolants like those specified for the Ram 2500 often have longer change intervals than traditional coolants, potentially extending to several years or a higher mileage threshold.
Can I mix different types of coolant in my 2021 Ram 2500?
No, absolutely not. Mixing different types of coolant, particularly HOAT and IAT coolants, can lead to a reaction that forms a gelatinous substance, clogging your engine's cooling system. This can result in overheating and catastrophic engine failure. If you're unsure about the current coolant type in your vehicle, it's best to completely flush the system and refill it with the correct HOAT coolant meeting the FCA MS-9766 specification.
What happens if I use the wrong coolant in my 2021 Ram 2500?
Using the incorrect coolant can have serious consequences, including:
- Corrosion: Incompatible coolants can accelerate corrosion within the engine's cooling system, leading to leaks and potential engine damage.
- Clogging: As mentioned, mixing coolant types can create a sludge-like substance that blocks passages within the cooling system, hindering its ability to regulate engine temperature.
- Overheating: The resulting inefficiency of the cooling system due to corrosion or clogging can cause the engine to overheat, potentially leading to a blown head gasket, warped cylinder heads, or other severe engine damage.
- Voiding Warranty: Using the wrong coolant might void your vehicle's warranty, depending on the circumstances.
How do I check my 2021 Ram 2500's coolant level?
Consult your owner's manual for the precise location of the coolant reservoir and instructions on how to safely check the coolant level. Always allow the engine to cool completely before checking the coolant level to prevent burns.
By following Ram's recommendations and using the correct HOAT coolant, you can ensure the long-term health and performance of your 2021 Ram 2500's 6.7L Cummins diesel engine. Remember, preventative maintenance is key to avoiding costly repairs.
