Isuzu NOVOCITI, User Manual, Page: 57 / 89

53
Preparation of The Engine Cooling Liquid
To protect the engine from freezing and prevent damage to the cooling system from corrosion,
use a mixture of engine coolant and tap water. Only use a mixture of antifreeze and tap water
appropriate density proposed by Isuzu.
Engine coolant density and freezing temperature
Isuzu genuine engine coolant when using coolant engine coolant should be between the
percentage of % 30% and 60%. Less than 30 % when the coolant is rust prevention
performance would be unsatisfactory, more than 60%, it can result in overheating. Temperate
ambient temperatures of 30% engine coolant and 70% use water mixture.
Isuzu genuine engine coolant (from the product that is specified by Isuzu) is used when a
different engine coolant;
External ambient temperature -
40°C is higher than the value when; 50 % of engine coolant, and
50 % tap water,
When external ambient temperature is -
40°C or lower: Use a mixture of 60 % engine coolant
and 40% tap water.
Adding the Engine Coolant
Engine coolant level in the expansion tank to the “min” line below when you open the lid of the
tank, an
d the tank “Max” next to the line and fill with tap water until the engine coolant mixture
at the appropriate intensity. Again, after filling coolant, fasten the cap securely.
Changing the Engine Coolant
Also, when changing the engine coolant, the radiator cap, make sure the radiator and the
coolant channels are clean.
Evacuation of cooling system:
1. Before you begin the process, make sure the engine is completely cold.
2. Remove the radiator cap.
3. Cool the engine coolant in the radiator and open the drain plug to get the fluid out.
4. Switch off the coolant in the radiator to the drain plug.