Put the wrong fuel in your car? Stop. Take a breath. This happens to thousands of Australian drivers every year — and in the vast majority of cases, it is completely fixable without towing, without a mechanic and without expensive repairs. Rapid Fuel Assist attends wrong fuel incidents across Melbourne every single day. We have the specialist equipment to drain and flush your fuel system on-site, and we will have your car running again. The most important thing you can do right now is stay calm and follow these steps.
Step 1 — Do Not Start the Engine
If you are still at the bowser or have just realised your mistake before driving away — do not touch the key. Do not start the engine. Do not even move the car to a parking spot if it means running the engine. This single step can be the difference between a straightforward fuel drain and a significantly more complex and costly fuel system flush.
When the engine is not started, the wrong fuel stays contained within the tank. Once the engine runs, contaminated fuel begins circulating through the fuel lines, injectors, pump and beyond — increasing both the complexity of the job and the potential for lasting damage to your fuel system components.
There is one important exception worth knowing: hybrid vehicles. If you are driving a hybrid, it is strongly recommended that you do not attempt to move the car at all — even if you think it can be done safely in electric mode. On many hybrid models, the combustion engine can activate automatically, and in some cases a wrong fuel event combined with engine activation can trigger a complete computer shutdown that requires expensive dealership resetting to resolve. If you are in a hybrid, stay put and call us first.
Step 2 — Stay With the Vehicle and Call Rapid Fuel Assist
Once you have confirmed the engine is off, call Rapid Fuel Assist on 1300 692 469. Our team will walk you through exactly what to do next based on your specific vehicle, fuel type and situation. Not every wrong fuel incident is identical — the right steps for a petrol car filled with diesel differ from a diesel vehicle filled with petrol, and hybrid and commercial vehicles each have their own considerations.
We respond across Melbourne Metro within 20 to 45 minutes in most cases. During busy periods response times may extend to around one hour. While you wait, stay with the vehicle, put your hazard lights on, and if you are at a petrol station bowser move away from the pump if you can do so without starting the engine — most modern vehicles can be pushed a short distance safely.
Our team will confirm everything with you on the phone before we arrive so you know exactly what to expect.
Step 3 — Do Not Attempt to Siphon the Fuel Yourself
It is natural to want to take action — but attempting to siphon wrong fuel from the tank yourself is not recommended. Modern vehicles have anti-siphon valves that make this difficult or impossible without specialist equipment, and incomplete removal of contaminated fuel can still cause damage. Our mobile units carry professional grade extraction and flushing equipment specifically designed for this job. A proper drain and flush ensures all contaminated fuel is removed from the tank, lines and system — not just most of it.
What NOT to Do
To summarise the actions to avoid after a wrong fuel incident:
Do not start the engine under any circumstances.
Do not attempt to drive the vehicle — even a short distance.
Do not try to siphon the fuel yourself.
Do not call a tow truck as your first call — a mobile wrong fuel service is faster, cheaper and resolves the issue on the spot.
Do not assume it will be fine. Even if the engine starts and the car seems to drive normally, running contaminated fuel through your system causes wear that reduces the remaining life of your fuel pump, injectors and other components. We regularly attend jobs where the customer drove home thinking they had gotten away with it — only for the car not to start the next morning.
Why the First 5 Minutes Matter
The sooner you stop and call, the simpler and more affordable the resolution. Approximately half of the wrong fuel jobs we attend in Melbourne are customers who noticed the mistake at the bowser before driving away — these are almost always the quickest and most straightforward jobs we do.
The other half range from customers who drove a short distance before the engine cut out, to those who made it home or even drove the car the following day before realising something was wrong. In every case where the engine was run on contaminated fuel, the job becomes more involved — and while catastrophic failure is not always the immediate outcome, the long-term effect on fuel system components is real. The further you run the engine, the more contaminated fuel circulates, and the greater the cumulative impact on parts that are expensive to replace.
The first 5 minutes are the most important. Stop. Call. Let us handle the rest.
Frequently asked questions
Is wrong fuel always fixable without taking to a mechanic?
Yes — in almost every case. Whether you caught the mistake at the bowser or drove the car until it stopped, Rapid Fuel Assist has the specialist equipment to drain and flush the fuel system completely on-site. Even vehicles that will no longer start are not a write-off — a full drain, system flush and refuel with the correct fuel resolves the vast majority of wrong fuel incidents without the need for towing or workshop repairs.
How long does a wrong fuel drain take?
Most jobs are completed within 30 to 45 minutes on-site. We arrive, drain the contaminated fuel, flush the system, refuel with the correct fuel and test the vehicle before we leave. Some vehicles may take longer such as those with multiple tanks, sub tanks, extended tanks or those vehicles which have been driven to no longer starting. We can advise you depending on your specific case.
Do I need a tow truck?
No. Rapid Fuel Assist is a fully mobile service — we come to your exact location whether you are at a petrol station, on the roadside or at home. No tow truck required.
What if I already drove the car?
Call us anyway. Even if the vehicle has been driven on wrong fuel, a drain and flush is still the correct first step. Our team will assess the situation when we arrive and advise honestly on what is needed. Approximately half of the vehicles we service have been driven to some extent. many of those have been driven to the point of no longer starting and we still stand by our no start no fee policy on all these services.
Put the wrong fuel in your car in Melbourne? Call Rapid Fuel Assist now on 1300 692 469. We are available 7 days a week and will have your car running again — no tow truck, no workshop, no drama.
