Cooling system

1997 TOYOTA RAV4
180,000 MILES • 2.0L • 4 CYL • AUTOMATIC
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ONYEMA
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  • 22 POSTS
Since i change my radiator to one that asks for only water (Chinese I think) noticed that my engine heats up quickly and more quickly if the air conditioner is on, but the temperature indicator does not rise. Is it because I am not using coolant as the new radiator states, water only?

Onyema Agumanu
Nigeria
Nov 1, 2016 at 10:07 AM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
You should always use a 50/50 mix of water and coolant. I just get the premixed coolant bottles.I would never just use water.
Nov 2, 2016 at 5:54 AM
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ONYEMA
  • MEMBER
  • 22 POSTS
Yes I know but the radiator I fixed stated Water only. Should I then counter the instructions? It could damage my radiator. Please reply/help.
Nov 3, 2016 at 2:26 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Use the coolant especially as you live in a hot climate, read the instructions on dosage for your average temp
Nov 3, 2016 at 10:22 PM
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