Interpreting Coolant Testing Strips
Jun 29, 2025 | 10:45 AM
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Cargo Master
Joined: Aug 2011
Posts: 2,319
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Interpreting Coolant Testing Strips
I flushed my coolant in summer 2019. Wow how time flies. I used Fleetpride or some such thing brand that from a large truck parts chain.
Anyway I checked with coolant test strip and after 90 seconds it clearly showed I'M DUE for a flush...
Then I look at the strip this morning and it has changed:
Does interpretation need to happen within just a few minutes?
Jun 29, 2025 | 12:08 PM
Joined: Jan 2017
Posts: 1,216
Likes: 94
It should say on the directions before I changed from the green coolant to ELC when using the fleet guard said take reading within x amount of seconds
Jun 30, 2025 | 09:35 AM
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Cargo Master
Joined: Aug 2011
Posts: 2,319
Likes: 89
It says to wait 90 seconds but doesnt say if the color continues to change after 1 hour or what have you.
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