What to Do If You Accidentally Put Petrol in a Diesel Car in Suffolk and Nearby Villages
- wrongfuelincarresc
- Jun 2
- 3 min read
24/7 Emergency Line: 07904 731886
Accidentally putting petrol in a diesel car is a common mistake that can cause serious damage to your vehicle. If you live in Suffolk or surrounding villages and towns, knowing what to do immediately can save you time, money, and stress. This guide covers practical steps to take if you find yourself in this situation, along with information about the areas we serve, including Ipswich, Bury St Edmunds, Lowestoft, Felixstowe, Stowmarket, and many more.
Understanding the Problem
Diesel engines and petrol engines operate differently. Diesel fuel lubricates the engine’s fuel system, while petrol acts as a solvent. When petrol enters a diesel engine, it can cause the fuel pump and injectors to lose lubrication, leading to corrosion and damage. Even a small amount of petrol in a diesel tank can cause problems, so acting quickly is essential.
Immediate Steps to Take If You Put Petrol in a Diesel Car
Do Not Start the Engine
Starting the engine circulates the petrol through the fuel system, increasing the risk of damage. If you realize your mistake before starting the car, do not turn the ignition on. If you have already started the engine, turn it off immediately.
Call for Professional Help
Contact a local mechanic or roadside assistance service that covers Suffolk and nearby villages. Areas we cover include:
Ipswich
Bury St Edmunds
Lowestoft
Felixstowe
Stowmarket
Sudbury
Woodbridge
Haverhill
Newmarket
Leiston
Saxmundham
Hadleigh
Eye
Debenham
Needham Market
These professionals can drain the contaminated fuel and inspect your vehicle for damage.
Avoid Driving the Vehicle
Driving the car can cause petrol to circulate further, damaging the fuel pump, injectors, and engine components. It’s best to have the vehicle towed to a garage for inspection and repair.
How Mechanics Fix Petrol in a Diesel Car
Draining the Fuel Tank
The first step is to drain the entire fuel tank to remove all petrol and contaminated diesel. This prevents further damage and prepares the system for cleaning.
Flushing the Fuel System
After draining, mechanics flush the fuel lines, fuel pump, and injectors to remove petrol residues. This step is crucial to restore proper lubrication and prevent corrosion.
Checking for Engine Damage
In severe cases, petrol can cause damage to the fuel pump or injectors. Mechanics will inspect these parts and recommend repairs or replacements if necessary.
Preventing Petrol Mistakes in Suffolk
Know Your Fuel Type
Always double-check the fuel type before filling up. Diesel pumps are usually green or black, while petrol pumps are often green or black but clearly marked. Look for signs and labels at the pump.
Use Apps and Tools
Some apps provide information about fuel stations and their pump types. Using these can help avoid confusion, especially if you are unfamiliar with a station.
Ask for Help
If you are unsure, ask the station attendant for assistance. It’s better to be safe than sorry.
What to Expect in Terms of Costs and Time
Fixing petrol in a diesel car can be costly, depending on the amount of petrol added and the damage caused. Draining and flushing the system may cost a few hundred pounds, while repairs to the fuel pump or injectors can increase the price significantly.
The repair process usually takes a few hours to a day, depending on the garage’s workload and parts availability.
Local Support and Services in Suffolk
If you are in Suffolk or nearby villages, you have access to reliable services that can help quickly:
Ipswich: Several garages offer emergency fuel drain services.
Bury St Edmunds: Local mechanics provide fast response for fuel contamination issues.
Felixstowe and Woodbridge: Coastal towns with garages experienced in diesel engine repairs.
Lowestoft and Leiston: Trusted roadside assistance and repair shops.
Many of these services offer mobile assistance, meaning they can come to your location to drain the fuel and prevent further damage.
What to Do After Repairs
Once your car is repaired, monitor its performance closely. Watch for:
Unusual engine noises
Reduced power or acceleration
Warning lights on the dashboard
Smoke from the exhaust
If you notice any of these signs, return to your mechanic immediately.
