Profile: Gokul Coolant Industries is a manufacturer of antifreeze/coolant. Our Zedex original green concentrate coolant has a proven formula that provides superior cooling system protection for passenger, light-duty & heavy duty vehicles. Mahir coolant provides superior cooling system corrosion protection for all types of vehicles. It protects all types of cooling system metals against rust and scaling. It is available both as packing concentrate and as ready to use pack.