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Discussion Starter · #1 ·
Those interested in checking DEF 32.5% before installing in your Jeep maybe interested.
Purchased OTC DEF tester kit, very easy to use. First test Walmart Peak Blue purchased, full 32.5 % urea.
Since only put in one 2.5 gallon box every 3 to 4 months, want to test my DEF box before install.
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