Putting petrol in diesel car mistake that, unfortunately, is more common than you might think. This situation can be stressful, but acting quickly and knowing the next steps can help minimize potential damage and save you from costly repairs. Here’s what you need to know and do if you accidentally put petrol in a diesel car.
Why It’s a Problem
Diesel engines operate differently from petrol engines. Diesel fuel acts as both a lubricant and a source of energy, ensuring the smooth functioning of components like fuel injectors and the fuel pump. Petrol, on the other hand, doesn’t offer the same lubricating properties and can cause friction and damage within a diesel engine. This is why putting petrol in a diesel engine can lead to severe issues if not handled correctly.
Potential Consequences
- Damage to the fuel injectors and high-pressure pump due to lack of lubrication.
- Issues with engine components caused by petrol’s differing combustibility.
- Risk of clogging the fuel filter due to mixing petrol with diesel.
While the consequences can be serious, prompt action can reduce the likelihood of long-term harm.
Immediate Steps to Take
Don’t Start the Engine
The most important step is to avoid starting the engine. Starting the car will circulate the petrol-diesel mixture through the system, increasing the chances of damage. If you realize your mistake while filling up, stop immediately and do not turn on the ignition.
Push the Car to a Safe Spot
If you’ve already moved the vehicle but haven’t started the engine, put the car in neutral and, with assistance, push it to a safe location away from the fuel pump.
Call a Professional Fuel Drain Service
Many areas have specialized fuel-drain services that can help address this issue. A professional will drain the contaminated fuel from your tank and flush out the system properly. This service can prevent long-term damage and ensures your vehicle is ready for operation again.
Inform Your Mechanic
Even after draining the fuel, it’s a good idea to have your mechanic inspect the vehicle. An expert opinion ensures that there’s no additional damage to vital engine components caused by the accidental mix.
Benefits of Acting Quickly
Addressing the situation promptly has several advantages.
Minimizing Damage
By keeping petrol out of your diesel engine system, you reduce the risk of major damage to high-cost components like the fuel injectors and fuel pump.
Saving on Repair Costs
Quick action helps you avoid expensive repairs or even the need for a full engine replacement. A fuel drain service is far cheaper than extensive mechanical work.
Retaining Resale Value
Maintaining your car’s health through timely interventions ensures longer-term functionality and resale value, which might otherwise drop significantly after engine damage.
Avoiding Breakdown Scenarios
Taking immediate action helps prevent roadside breakdowns. A functional car means less inconvenience to your day-to-day schedule.
Preventing This Mistake in the Future
While errors happen, there are steps you can take to reduce the likelihood of making the same mistake twice.
- Label Your Vehicle’s Fuel Cap: Use a sticker or reminder near your fuel cap to designate the correct fuel type.
- Stay Alert During Refueling: Minimize distractions and double-check the pump before you start filling.
- Use Designated Diesel Pumps: Many stations now have pumps with color-coded handles or larger nozzles for diesel, so you can avoid confusion.
