Blue Def Decoder vs Fuel Log

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.

Log every fill-up and know the MPG your car actually gets — not the number the dashboard flatters you with. VehicleLog does the fuel math properly. Efficiency is computed full tank to full tank, so a partial splash-and-go never corrupts the figure. Averages are distance-weighted, a mistyped odometer reading is flagged and left out instead of silently wrecking your history, and everything works in your units — MPG, imperial MPG, L/100 km or km/L — with prices in your own currency. WHAT YOU GET • A fill-up logged in seconds: date, odometer, volume, price — the app computes the rest • Your true fuel economy per tank, measured at the pump, immune to partial fills • A trend chart that makes a bad tank obvious the week it happens, not months later • Cost insights: fuel cost per mile or km, and this month's spend against last month's • Every car in one garage — the daily driver, the weekend car, the family van — each with its own history • One-tap CSV export of the complete log, ready for a spreadsheet or the buyer of your next car PERFECT FOR • Commuters who want to know exactly what a new route or new tires did to the fuel bill • Owners of ageing cars watching for the efficiency drop that signals trouble early • Budgeters who need fuel spending as a real monthly number, not a guess • Sellers who can hand over a documented fuel-economy history instead of a promise WHY NOT JUST THE TRIP COMPUTER? Dashboard MPG readouts are estimates, and they routinely read optimistic. VehicleLog measures at the only honest point — the pump — using real volume, real money and real miles. And unlike a spreadsheet, it knows a partial fill from a full one and never divides the wrong numbers. PRIVATE BY DEFAULT Your entire log lives on your iPhone. No account, no cloud, no location tracking, no ads. Delete the app and the data is gone — it was never anywhere else. FULL ACCESS VehicleLog requires an active plan: weekly, yearly, or a one-time lifetime purchase. Full access unlocks the whole app — unlimited vehicles and fill-ups, the per-tank fuel economy chart, cost insights, and CSV export. Add your car, log your next fill-up, and by the second full tank you'll know your real MPG. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia