# How can I tell if I've put the wrong fuel in?

> Wrong Fuel In The Car — mobile wrong-fuel rescue across the UK. 24/7, 365 days a year.
> Phone: 0800 170 0644 · From £89
> Rated 4.8/5 from 2190 reviews on Trustpilot (Fuel Fixer).

- **Category:** Symptoms

The clearest clue is the pump nozzle and receipt. Diesel nozzles are wider and often won't fit a petrol filler neck; petrol nozzles fit almost anything. If the car runs rough right after fuelling, treat it as a misfuel until proven otherwise.

**In an emergency:** don't start the engine and call 0800 170 0644.

## Contact
Call **0800 170 0644** — 24/7, 365 days a year. Do not start the engine after misfuelling; we drain and flush on-site, usually in 45–90 minutes.

*Source page for Wrong Fuel In The Car. Fuel Fixer Ltd, company no. 08520551.*