A mechanic is using a floating ball tester to check the protection level of the ethylene glycol (antifreeze) water mix in a vehicle's radiator. The one floating ball indicates the cooling system is protected to -40 degrees Fahrenheit. Antifreeze Examining Car Mechanic Testing Vehicle Radiator Antifreeze Protection Level
can with non-freezing liquid, isolated on white Antifreeze Plastic Bottle Can with non-freezing liquid
Open car radiator cap - ready to fill in the antifreeze Auto Repair Shop Winter Antifreeze Open car radiator cap