Today’s diesel engines are much more complex than when they were a decade or two ago. Due to the digital age, remarkable progress has been made in efficiency, noise reduction, and pollution control. This also means that it can be harder to identify and resolve when something needs to be fixed with a modern diesel engine.
The engine in a vehicle might be experiencing problems such as misfiring, lagging, or just not running correctly. This could be due to a blocked air filter, damaged exhaust sensors, inadequate fuel pressure, or many other causes. A factor often overlooked is the possibility of having “bad” fuel, which can be responsible for the engine’s issues.
With bad fuel a common cause of diesel vehicle breakdowns on the side of the road in the UK, today’s article provides information on how to recognise the signs of bad fuel so you can prevent your vehicle from breaking down. Before taking it to a 24/7 wrong fuel service, here are the symptoms of petrol in a diesel engine:
Chugging
You’ll notice the engine is struggling to run, as if it’s receiving short bursts of fuel followed by none, causing it to lurch or sputter.
Insufficient Power
The engine won’t provide enough power when the accelerator is pressed. Even though the accelerator is engaged, the engine is only generating a minimal amount of power, resulting in it being unable to reach higher RPMs.
Black Smoke
This happens because the engine is not burning the fuel properly, resulting in large amounts of dark, thick smoke from the exhaust pipe. The smoke comprises unburnt carbon particles from the petrol/diesel fuel mixture.
Engine Death
Engine cutting out or dying is when the engine suddenly stops running and no longer responds to the accelerator pedal. It may also happen after experiencing some of the symptoms mentioned above, such as stuttering, sputtering, or misfiring.
Engine stalling or cutting out
Another symptom of potential misfuelling is your engine stalling or cutting out shortly after starting or while driving. This may occur due to damage to the fuel pump and injectors in a petrol-in-diesel engine situation or insufficient combustion in a diesel-in-petrol engine.
Reduced performance or poor acceleration
If your car is experiencing a noticeable loss of power or sluggish acceleration after refuelling, this could be a sign of wrong fuel in the engine affecting its overall performance.
Start or Restart Failure
It can be difficult to start a car when it has been off for a while. It may require multiple attempts to turn the key in the ignition before the engine finally turns on. You may have to take your vehicle to a 24/7 wrong fuel service if it doesn’t start.
If your engine is struggling or repeatedly failing to start after refuelling, misfuelling could be the cause. Poor combustion may result from petrol in a diesel engine or clogged spark plugs due to diesel in a petrol engine.
Engine Management Light (ELM) or Other Electronic Warnings
The ELM is a warning light that comes on in a vehicle’s dashboard when there is an issue with the fuel system, fuel pressure, or injector errors. It is illuminated to alert the driver that something is wrong and should be checked out by a mechanic.
Weird Smells
The smells of petrol and diesel are very different, and someone knowledgeable about cars can tell the difference between the two by sniffing the fuel or fumes from the area where the fuel is filled or the exhaust. Those who are experienced can even detect it in the exhaust fumes.
Unusual engine noises
Pay attention to any unfamiliar or strange sounds emanating from your engine, such as knocking, rattling, or excessive revving, as these may indicate an issue related to misfuelling.
Immediate Actions to Take in Case of Misfuelling
As soon as you realise that you have put the wrong fuel in your car, there are several critical steps to follow:
- Don’t start the engine: To minimise any potential damage, do not start your engine or drive the car after misfuelling.
- Move your car to a safe location (if possible): If you’re already driving or if your car is in an unsafe or obstructive position, move it to a safer location by pushing it, if necessary.
- Assess the situation: Determine the type of fuel that has been incorrectly added to your car, the amount of the wrong fuel, and whether the engine was started or driven after the incident.
- Contact a wrong fuel recovery service: Promptly seek professional assistance from a reputable service like Fuel Fixer to help you resolve the misfuelling issue and get your vehicle back on the road.
Contact Fuel Fixer Right Away
If you’re stuck and out of ideas, reach out to Fuel Fixer immediately! We’ll arrive within 46 minutes of your call and can handle petrol in a diesel car and vice versa! Call 0333-366-1081 right now for 24/7 wrong fuel service!
How Fuel Fixer Technicians Help You Recover from Misfuelling
Trained and experienced technicians from Fuel Fixer will assist you throughout the entire wrong fuel recovery process, ensuring the least possible damage to your car:
- Draining the contaminated fuel: Fuel Fixer technicians will arrive on-site with specialised equipment to safely remove the incorrect fuel from your car’s fuel tank.
- Flushing and cleaning the fuel system: To completely remove any remaining residue of the wrong fuel, technicians will flush and clean the fuel lines, fuel filter, and injectors.
- Refuelling with the correct fuel type: Once the incorrect fuel has been drained and the fuel system has been cleaned, the technician will refill your fuel tank with the appropriate fuel for your car.
- Performing additional checks: To ensure optimal performance and safety, Fuel Fixer technicians will conduct further checks and tests before you continue your journey and regain peace of mind.
Preventative Measures to Avoid Misfuelling
Reduce the risk of misfuelling by following these simple tips:
- Double-check the fuel type: Always verify the appropriate fuel for your car by consulting the owner’s manual, checking the fuel flap, or searching online before refuelling.
- Pay attention at the petrol station: Focus on the task at hand while refuelling by avoiding distractions like using a mobile phone, engaging in conversation, or multitasking.
- Choose the correct fuel nozzle: Ensure that you are using the right fuel pump nozzle and double-check the label before inserting it into your car’s fuel tank.
Tackling Wrong Fuel Incidents with Confidence
The impact of using the wrong fuel in your car can be catastrophic, resulting in significant damage to your vehicle’s engine and fuel system. Remember, acting promptly upon realising the mistake can save you from severe consequences. On that note, knowing these key symptoms and steps can help you handle such situations effectively and prevent further damage to your vehicle.
Misfuelling can be a stressful and inconvenient experience, but by recognising the warning signs and taking immediate action, you can reduce the risk of damage to your car and avoid costly repairs. Engaging the help of a professional wrong fuel recovery service in the UK, like Fuel Fixer, will ensure that your vehicle is safely and efficiently back on the road in no time.
Contact Fuel Fixer Right Away
If you’re stuck and out of ideas, reach out to Fuel Fixer immediately! We’ll arrive within 46 minutes of your call and can handle petrol in a diesel car and vice versa! Call 0333-366-1081 right now for 24/7 wrong fuel service!

