AdBlue into diesel tank
Immediate Action Plan For AdBlue Contamination
That moment at the pump when you realise you’ve filled a diesel tank with AdBlue is nerve-wracking. Don’t turn the key. Not even a click. Once the engine fires up, the urea solution will spread through critical components, and a simple slip-up can become a costly repair.
Why AdBlue Is So Damaging to Diesel Engines
AdBlue might look harmless, but it’s formulated for exhaust after-treatment—not as a fuel. Drop it into a diesel tank and that blend of urea and de-ionised water quickly becomes corrosive.
Diesel pumps and injectors thrive on a thin oil film for smooth operation. AdBlue tears through seals and metal surfaces, stripping away vital protection.
When temperatures fall, urea crystallises inside filters and narrow pipes, turning tiny passages into solid blockages.
“A single drop of AdBlue in diesel can erode a high-pressure pump seal within minutes,” warns a leading auto technician.
Key Takeaways
- AdBlue Belongs In The Exhaust System, Not The Fuel Tank
- Urea Crystals And Corrosion Can Block Filters And Ruin Seals Quickly
- Professional Flushing And Parts Inspection Are Essential
Most misfuelling jobs wrap up in 60 to 90 minutes, with total costs usually around £350 if the engine hasn’t been started. That fee covers labour, parts and eco-friendly disposal.
