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2
COOLING SYSTEM
7. Remove:
• Rear bumper cover 1
8. Disconnect:
• Coolant hoses 2
9. Drain the coolant.
NOTE:
Lift up the front of the machine to drain the coolant
1
completely.
WARNING
Coolant is poisonous. It is harmful or fatal if
swallowed.
• If coolant is swallowed, induce vomiting
immediately and get immediate medical atten-
tion.
• If coolant splashes in your eyes, thoroughly
wash them with water and consult a doctor.
• If coolant splashes on your skin or clothes,
2
quickly wash it away with soap and water.
10. Connect:
• Front coolant hoses
11. Connect:
• Rear coolant hoses
12. Fill:
• Cooling system
CAUTION:
• Hard water or salt water is harmful to engine
parts. If soft water is not available, use boiled
or distilled water.
• Do not use water containing impurities or oil.
13. Bleed the air from the cooling system.
2-5
INSP
ADJ
Recommended coolant:
High quality silicate-free ethylene
glycol antifreeze containing corro-
sion inhibitors
Coolant mixing ratio (coolant:water):
3:2 (60%:40%)
Total amount:
RS90/RS90R/RSG90
4.8 L (4.22 Imp qt, 5.07 US qt)
RS90M
6.3 L (5.55 Imp qt, 6.66 US qt)
RST90 "USA/Canada"/RST90TF
"Canada"
5.2 L (4.58 Imp qt, 5.50 US qt)
RST90 "Europe"/RST90TF
"Europe"
5.4 L (4.75 Imp qt, 5.71 US qt)
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