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 Post subject: Re: Replace battery coolant
PostPosted: Sat Aug 04, 2018 4:17 pm 
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Joined: Mon Jun 03, 2013 6:43 am
Posts: 273
Location: Redwood City, CA
KurtManz wrote:
TonyWilliams wrote:
I've never flushed the coolant. I've advocated getting the correct "PH paper" to test your coolant, which prevents unneeded and wasteful flushing and replacement:

http://www.run-rite.com/pro/products/co ... trips.html


Hi Tony,
I bought these strips, but have never used them before.
Any tips on what to do or not to do?

Is it as easy as open the cap for the coolant, dip the strip, pull it out, wait a few minutes, compare the color to the table on the side of the bottle?
What's considered good vs bad?



I have also used the pH strips, and they are pretty easy to use as you describe.

That said, I do worry that they may not test a parameter that is important for electric cars (but not oil burners): I'd think that you'd want the coolant to be low conductivity. That said, you'd think that high alkalinity (high pH) would correlate with high conductivity. High acidity / low alkalinity tests 'bad' on those strips.

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 Post subject: Re: Replace battery coolant
PostPosted: Sun Aug 05, 2018 5:39 am 
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Joined: Fri Jul 21, 2017 5:23 am
Posts: 43
Location: Seattle, WA
I dipped the strips.

Results are: 2014 tested august 2018, about 38K miles on it.

Both blues came out with fp/bp at max... I suspect whatever consumes glycol doesn't exist in the EV?
Both blues came out with reserve alkalinity of 6.6 = OK

the Pink came out with fp/bp at max, but with reserve alkalinity of 3.2 and Ph of 9. it's within the "ok" bar but it's starting to become basic.

Does anybody else have any tests or results on theirs? It'd be good to see what is 'normal' for other drivers and spot when something starts to go abnormal.

Image here:
https://imgur.com/a/QgKh4MM
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