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Around here in the Pacific Northwest, it does not get too cold as a rule (rarely below 12 degrees Fahrenheit) so we don't require lots of alcohol in the washer fluid. Good ol' 20/10 RTU is usually just fine. Wish I did have a cheap source of methanol, though, since I've got a gallon of 20/10 Super Concentrate which can make up to 880 gallons of windshield washer fluid- should last almost as long as my '95 Civic.
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what is 20/10 super concentrate or 20/10 RTU???
Thanks,
JMH