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★★★★★
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What's New in 1.3.0 • Redesigned interface: cleaner, more focused screens across the Decoder, History, and Settings tabs. • Try it faster: tap example codes right in the input field to see decoding in action without typing. • Clearer results: your freshness call (Good, Usable, Check, Replace) is front and center, with the full decoding breakdown tucked into an expandable section so results aren't buried in detail. • Easier-to-scan history: saved codes now show freshness and format status at a glance, with a clear badge when a code has more than one possible date. • Reorganized Settings: freshness thresholds, decoder preferences, and data management are now grouped into clear sections.
Easily check the freshness of your Diesel Exhaust Fluid (DEF) with Blue Def Decoder. Enter the 5–11 character code printed on your DEF container — whether it’s the short date section or the full code — and instantly see the manufacturing date and freshness status. Use Blue Def Decoder to: Confirm your DEF hasn’t expired Track shelf life for storage Verify compliance for your vehicle Blue Def Decoder saves you time and removes the guesswork from DEF code verification. Perfect for Sprinter van owners, diesel truck drivers, and anyone who needs quick, accurate results.