How it helps
Use it for a focused task
This page gives drivers a branching, color-coded checklist that changes based on three inputs: what fuel went in, what engine you have, and whether you started the car. Below the checklist, you'll find plain-English explanations of why each step matters, the most common mistakes people make in the moment, and tips for preventing misfuelling next time.
There is also a short comparison of petrol-in-diesel versus diesel-in-petrol damage so you understand what your mechanic is dealing with. 1.
Pick the fuel you accidentally used. 2.



