The cooling system was designed to maintain engine temperature at an efficient level during all engine-operating conditions.
When adding or changing the fluid in the system, be sure to maintain a 50 / 50 mixture of high quality ethylene glycol antifreeze and water in the cooling system. Use only antifreeze that is SAFE FOR USE WITH AN ALUMINUM RADIATOR.
A 50 / 50 mixture of ethylene glycol and water will provide the following protection:
Check the coolant level in the recovery bottle or surge tank. The fluid level may be checked by observing the fluid level marks of the recovery tank. With the engine cold, the level should be at the FULL COLD or between the HOT and ADD level. When the engine is at normal operating temperatures, the coolant level should be at the HOT level. Only add coolant to bring the system to the proper level.