Isuzu Tilt Slide FYJ2000 Instruction Manual page 370

7-42
SERVICE AND MAINTENANCE
Radiator drain plug
Engine drain plug
Changing the Engine Coolant
The engine coolant must be changed
according to the Maintenance Schedule.
When changing the engine coolant, also
clean the radiator and engine coolant
passages.
Handling the Radiator and Intercooler
→ Refer to page 7-43
ADVICE
• Drained engine coolant must be
disposed of in a method conforming
to the regulatory requirements in
your country.
1. Remove the radiator sub-tank cap.
2. Open each drain plug on the radiator
and the engine to discharge the
engine coolant.
3. Close the drain plugs.
4. Fill the radiator sub-tank with tap
water to the top of the opening.
5. Close the cap of the radiator sub-
tank.
6. Start the engine and let it idle for 20
minutes. Stop the engine, wait until
the tap water cools down, and then
drain out the water.
7. Fill the radiator sub-tank.
ADVICE
• Using any engine coolant other than
the recommended one can shorten
engine life, as it cannot sufficiently
protect the cooling system from
corrosion.
8. Idle the engine until the engine coolant
reaches the proper temperature, then
idle the engine for an additional 10
minutes.