Nulon Red General Purpose Coolant Premix is a ready to use, multi-purpose anti-freeze/anti-boil and corrosion inhibitor that is suitable for a wide variety of vehicles on Australian and New Zealand roads. This product is safe to use in a variety of vehicles as a top-up to existing anti-freeze and anti-boil red coolant or as a full service coolant for a full 4 years or 200,000km service life. Directions as complete fill: Refer to the owner’s manual for cooling system capacity. If the system is clean, ensure the engine is switched off, turn the heater on and drain the old coolant (when cool) by removing the drain plug or bottom radiator hose. Then flush the cooling system with clean water to remove all traces of old coolant. Add Red General Purpose Coolant Premix. Secure the radiator cap start the engine, bleed air from the system if necessary. Check the coolant level is correct when the system is cool. As a top-up to existing coolant: Add as top-up to existing red coolant, then start the engine and turn the heater on. When the engine is warm, turn it off and allow it to cool. Check the coolant level, and top it up if necessary. NOTE: The life of Red General Purpose Coolant Premix when used as a top-up, defaults to that of the original coolant in the cooling system. If you are unaware of the type or life of the coolant in the system we recommend a complete coolant change within the next 5000km or 6 months. For an OEM Replacement Coolant please use Nulon Long Life Coolant Part No. LL (green), RLL (red), or BLL (blue).