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Originally Posted by ltoews
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The most important part of the batch code is the third through seventh numbers. Here is an example of a batch code: 122027436100 B
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Great info! I needed DEF today and my local auto parts store (no truck stop near me) has the house brand (cheap) and Blue Def (not as cheap). The house brand was an early 2018 batch (boo!) and the Blue Def was 2019 day 190 batch (yea!), Guess which one I bought despite being more expensive.