What to Do When You’ve Pumped the Wrong Fuel into Your Car

man fueling car

Making mistakes is a part of life, and pumping the wrong fuel into your car is a grave example of that. It’s a potentially costly error, but fortunately, it’s not the end of the world. With some quick thinking and a little know-how, you can minimise the damage and get back on the road as quickly as possible. 

This article discusses the steps you should take when you’ve pumped the wrong fuel into your car, from assessing the damage to filling it up with the correct fuel.

Stop Pumping; Don’t Start the Engine

The first thing you should do is stop pumping the wrong fuel immediately. If you’ve realised the mistake before driving away from the gas station, don’t start the engine. 

If you have started the engine, turn it off right away. The longer the wrong fuel is in your car’s system, the worse the damage will be. So, the key is to act quickly.

Assess the Damage

Once you’ve stopped pumping the wrong fuel, assess the damage. If you’ve only added a small amount of the wrong fuel, the damage is likely to be minimal. However, if you’ve filled up the tank with the wrong fuel, the damage could be significant. 

The type of fuel you’ve added will also affect the extent of the damage. For example, diesel fuel in a gas engine can cause more damage than gasoline in a diesel engine.

Call for Help

If you’re not sure what to do next, call for help. Your car’s manual or the gas station attendants may be able to offer some advice. 

Alternatively, you can call a tow truck or a mechanic for assistance. They’ll be able to assess the damage and recommend the best course of action.

Don’t Try to Fix It Yourself

If you’re not a mechanic, don’t try to fix the problem yourself. You could end up causing more damage and costing yourself more money in the long run. It’s better to let a professional handle the repair work.

Drain the Tank

One of the first things a mechanic will do is drain the tank. This will remove the wrong fuel from your car’s system. 

Depending on the extent of the damage, the mechanic may need to flush the system to remove any remaining traces of the wrong fuel.

Replace the Fuel Filter

Before the fuel gets to the engine, the fuel filter is intended to remove any contaminants. When you’ve pumped the wrong fuel into your car, the filter can become clogged with debris. 

That’s why it’s important to replace the fuel filter to prevent any further damage to your car’s engine.

Flush the Fuel Lines

If the wrong fuel has made its way into your car’s fuel lines, it can cause damage to the engine. Flushing the fuel lines will remove any traces of the wrong fuel and prevent further damage. 

It’s a labour-intensive process, but it’s essential to ensure your car is running smoothly.

Fill Up with the Correct Fuel

Once the repairs have been made, it’s time to fill up with the correct fuel. Make sure you double-check the fuel type before pumping to avoid making the same mistake twice. 

It’s also a good idea to fill up with high-quality fuel to help clean out any remaining debris in your car’s system.

Prevention Is Key

The best way to avoid pumping the wrong fuel into your car is to be vigilant. Pay attention to the fuel type and double-check before pumping. If you’re not sure, ask for help. It’s better to be safe than sorry.


Pumping the wrong fuel into your car can be a frustrating and expensive mistake. You can lessen the harm and resume driving as soon as possible by taking certain procedures. The key is to act quickly, assess the damage, and call for help if needed.

Get immediate wrong fuel assistance from Fuel Fixer, the company that deploys mobile units on call across the UK for wrong fuel recovery. 

With an average arrival time of just 46 minutes, we are committed to providing you with the fast and efficient wrong fuel assistance you need to get back on the road. Contact us today for quick and reliable wrong fuel assistance!

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