One part of AutoServe Coolant is recommended for 1:1 dilution with demineralised water. Do not add water to the cooling system when refilling;
use pre-mixed solution of AutoServe Coolant. Start and run engine for 5 minutes to circulate the fluid. Check for leaks and top-up system if required.
For maximum system protection, replace coolant at least every three years or 60,000 km.