How much antifreeze does the average highway tractor hold?

The average highway tractor typically holds between 10 to 15 gallons of antifreeze, depending on the size of the engine and the cooling system design. This capacity can vary between different makes and models, so it's essential to consult the manufacturer's specifications for precise information. Regular maintenance and checks are crucial to ensure the antifreeze level is adequate for optimal engine performance and protection against freezing conditions.