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Close but not complete
Antifreeze contains an agent that acts as a sacrificial anode that takes the brunt of corrosion due to electrolysis, etc. Over time the agent will be depleted and the cooling system will be unprotected from corrosion. Antifreeze itself never loses its ability to protect from freezing, unless diluted excessively.
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ASE Certified Master Automotive Technician w/L1.
ASE Certified Master Medium/Heavy Truck Technician.
Certified EVT (Emergency Vehicle Technician)
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