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Author Topic: Coolant Change  (Read 5580 times)

Fitzharris

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  • My Honda: JAZZ 1.3 I-VTEC EX CVT AUTO
Coolant Change
« on: May 07, 2026, 11:16:24 AM »
Hello again all,
My Jazz is a 2020, petrol only with an automatic transmission with 49,000 KM. The coolant tests and looks good, but has never been replaced. At what point would you recommend an engine coolant change/flush?
Thanks in advance for your reply.
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UKjim

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Re: Coolant Change
« Reply #1 on: May 07, 2026, 11:25:37 AM »
Honda recommend changing the coolant every 10 years or 125,000 miles.
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jazzaro

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Re: Coolant Change
« Reply #2 on: May 08, 2026, 11:43:04 AM »
Quote from: UKjim on May 07, 2026, 11:25:37 AM
Honda recommend changing the coolant every 10 years or 125,000 miles.
Yep.
Generally, coolant has to be replaced every 5-6 years. Honda Antifreeze Coolant Type2 has a specific composition (OAT,  ASTM D3306, ASTM D4340, JIS K 2234-2006 Class 2, no silicate, no borate, low phosphate) so it can last longer. Important, do not add or refill with with tap water or other coolants, even if they have the same colour, this does not mean same composition.
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fatlad

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Re: Coolant Change
« Reply #3 on: May 08, 2026, 12:13:18 PM »
hope this gives you some idea at least
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DENY EVERYTHING BALDRICK!

jazzaro

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Re: Coolant Change
« Reply #4 on: May 08, 2026, 01:42:58 PM »
This for the GK Jazz.

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