Don't start the engine! Don't even turn the ignition on. Call for a wrong fuel drain immediately. If caught before starting, it's a straightforward drain and flush with no engine damage.
Turn it off immediately and don't try to restart. The fuel system will need a more thorough flush, and the injectors may need checking — but it's usually still fixable roadside.
Some providers carry mobile EV chargers that can give enough charge to reach the nearest charge point. Others will flatbed your vehicle to the nearest charger or your home.
Typically 30–60 minutes roadside. The tank is drained, flushed, and refilled with the correct fuel. You'll usually be driving away within the hour.
Standard car insurance usually doesn't cover misfuelling. Some breakdown policies do — check your terms. Either way, prompt draining is far cheaper than engine repair.
Pull over safely, switch on hazard lights, and exit via the passenger side if on the hard shoulder. Call for emergency fuel delivery or use the SOS phone on the motorway.
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