The controversy led to massive class-action lawsuits where GM eventually settled, offering hundreds of dollars in reimbursements to affected owners.
: 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. buy dex cool engine coolant
: The chemistry specifically softened the nylon and silicone gaskets used in certain GM V6 engines, leading to catastrophic leaks. The controversy led to massive class-action lawsuits where
: Drivers who topped off their orange Dex-Cool with traditional green coolant inadvertently created a chemical reaction that turned the fluid into a thick "pudding," destroying the cooling system. The Aftermath and Modern Reality : Drivers who topped off their orange Dex-Cool
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:
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.