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: If the coolant level dropped too low, the Organic Acid Technology (OAT) formula could react with air to form an acid that attacked engine components.

However, Dex-Cool isn't the "villain" it's often made out to be today. When used in modern engines designed for it and kept in a properly sealed system, it provides excellent long-term protection against rust and corrosion. Most experts agree that as long as you and perform a thorough flush when switching, it is highly effective. buy dex cool engine coolant

The story took a dark turn in the early 2000s when thousands of GM owners began discovering a thick, brown, mud-like substance—dubbed ""—clogging their radiators and eating through intake manifold gaskets. The technical culprit was often a combination of factors: : If the coolant level dropped too low,

The controversy led to massive class-action lawsuits where GM eventually settled, offering hundreds of dollars in reimbursements to affected owners. Most experts agree that as long as you