Coolant Mixture

Ethylene glycol/water fill ratios have been established to ensure a minimum of 50 percent ethylene glycol in the coolant mixture following the recommended coolant flush and drain procedure, and ensuring that all engine block drains and air bleeds were utilized.

Using the correct fill ratio and the following procedures will ensure a minimum concentration of 50 percent ethylene glycol in the coolant system and simplify the customer fill task. Refer to the illustration for static fill radiator capacities. Every five years or 240,000 km (150,000 miles), whichever occurs first, the cooling system should be drained and filled using the following recommended procedures.