Frequently asked questions
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The terms are often used interchangeably, but antifreeze generally refers to the concentrated fluid used in an engine cooling system. Engine coolant may refer to either the concentrate or a pre-mixed solution of antifreeze and water.
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Color can help identify some coolant products, but it should not be used by itself to determine compatibility. Different manufacturers can use similar colors for different coolant chemistries. Always select coolant based on the required specification.
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Concentrated antifreeze generally needs to be mixed with the appropriate amount and type of water before use. A 50/50 coolant is already pre-diluted and typically ready to use when compatible with the application.
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Extended-life coolant is formulated for longer service intervals than some conventional coolants when used in an appropriate cooling system. Actual replacement intervals should still follow the vehicle, equipment, and coolant manufacturer's recommendation
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It can be. Fleets that regularly service vehicles can use bulk coolant to maintain a centralized supply and reduce reliance on individual containers. Fleet managers should first determine which coolant specifications are required across their vehicles.