* Engine Variations: Even within the same model year and engine type, there can be variations in radiator size, cooling system design, and other factors that affect the total antifreeze capacity.
* Maintenance History: Previous repairs, modifications, or component changes could have altered the system's capacity.
How to Find the Correct Capacity:
1. Consult Your Owner's Manual: The most reliable source is your Peterbilt 379 owner's manual. It will have specific information on your truck's cooling system.
2. Look for a Sticker: Check the radiator cap or the inside of the radiator shroud for a sticker or label indicating the coolant capacity.
3. Contact a Dealer or Service Center: A Peterbilt dealer or a qualified service center familiar with your truck model can give you the precise antifreeze capacity. They can access service manuals and technical information specific to your vehicle.
Important Considerations:
* Type of Antifreeze: Use the correct type of antifreeze recommended by the manufacturer. Typically, this will be an extended-life, 50/50 pre-mixed coolant, but always verify.
* Flushing and Filling: When adding or replacing antifreeze, it's essential to completely flush the system to remove old coolant and prevent corrosion and clogging.
Remember, getting the correct antifreeze capacity and using the proper type is crucial for your engine's health and performance.
