Wrong fuel in your Vauxhall Signum? Diesel in your Petrol Vauxhall?

We can help!
Call us: 0333 366 0103
Vauxhall Fuel Drain


Filling Diesel in a Petrol Vauxhall is a well-known mistake to make. And its remedy depends upon an assortment of factors. In case you would like to find out what you have to do about this then continue reading.
Right here are the most crucial factors to think about whenever figuring out whether to have a fuel drain:

  1. What level of Diesel have you put in to the Vauxhall, taking into account that the fuel tank capacity of your Vauxhall Signum is normally about 60 litres?
    1. A modest quantity of Diesel, as little as 3 litres of Diesel in a Petrol Signum will in most situations not necessarily be a big problem. Experience has demonstrated to us that anything under 3 litres (approximately 5% of the whole fuel tank volume) is sometimes capable of being completely diluted by completely filling the remainder of the tank with the right fuel.
      It is relatively uncommon to find a car or truck going through difficulties with under 5% incorrect fuel contamination. Be aware that it's infrequent - certainly not impossible to find. You can get a number of vehicles that don't endure any degree of contamination whatsoever.
    2. Anywhere between 3 and 6 litres of Diesel in the Vauxhall (5 to 10%) is more of a 50/50 condition. Our experience has proven that as many drivers get away with it as all those who break down. When figuring out whether or not to chance it and just simply top it up consider that it is the same thing as gambling your car on black - you have got a 50/50 chance of it being ok.
    3. Anything in excess of 6 litres of Diesel in a Petrol Signum ought to promptly be drained since your probability of driving with that amount of contamination is certainly below one in fifty - truly big odds.
  2. Put some Diesel in a Petrol Vauxhall and drove it: Have you seen any performance issues after putting the bad fuel in your Signum? If you have, have it emptied regardless of the amount of Diesel or the contamination ratio. Still running a vehicle that is already beginning to suffer from the consequences of fuel contamination will definitely end up in progressively more damage being done to your fuel system components.
  3. Are you interested in reassurance?
    In that case get it emptied. Whatever the contamination ratio, there is always some degree of threat connected to operating a Petrol motor on fuel contaminated with Diesel. Likely implications of driving a vehicle on the incorrect fuel include things like the motor refusing to start, running unevenly, decrease in power, degradation of the high-pressure pump, worn out or bunged injectors, etc. These are some of the most common Diesel in Petrol warning signs, and if you observe any of them stop and get it drained asap.

Do not simply get any unqualified mechanic to try to fix your vehicle. We are Vauxhall experts and have got the certification and practical experience required to make certain that you get back on the road with no hassle or worry.

Put Diesel in a Petrol Vauxhall

Inadvertently put Diesel in a Petrol Vauxhall? Or perhaps even put contaminated fuel in your Vauxhall Signum?

Give us a call for Assistance & Guidance

Contact us and receive straightforward recommendations and practical help for your specific circumstance

We come out and drain it

We would come to you to carry out the contaminated fuel retrieval & clean there on scene

All done & You Get Moving Once again

As soon as we are done you can get back on your way and get on with your trip

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain professionals in the UK, boasting nationwide service, for Vauxhall motorists particularly. We mainly attend to:

  • Unleaded petrol in Diesel Car
  • Diesel in an Unleaded Petrol Vehicle
  • AdBlue contamination
  • Water fuel contamination

We are Vauxhall specialists and have successfully drained hundreds of Petrol Vauxhall vehicles. Whether or not it's at the roadside, on a station forecourt, or even at your house, we can get you on the road again.

The Process

The technique of draining Diesel from a Petrol vehicle is basically exactly the same for most motor vehicles. Obviously it can differ somewhat as every manufacturer has their unique distinct fuel system. Having said that it still essentially adheres to the following principles:

Petrol in Diesel Vauxhall

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Vauxhall

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Vauxhall

Vehicle Restart

Get the car up and running again

View more


Hours a Day


Days a Week





Our Partners

Just some of the few people we work with to bring you the best petrol in diesel service possible

Diesel in Petrol FAQs

When someone has put Diesel in a Petrol car they have a few very common questions. So we have compiled a list of the most Frequently Asked Questions for you

I put Diesel in a Petrol car and drove it. What do I do?


Turn off the car as soon as possible and call us. Continuing to run a vehicle on the wrong fuel can potentially damage it. We will be able to give you advice and assistance based on your circumstances

Will driving a Petrol car on Diesel cause damage to it?


It can. However, if the problem is caught and remedied quickly the risks will be minimal. Of the 1,500 vehicles we attend every month, less than 0.5% have suffered and substantial damage requiring parts replacement.

How much Diesel can I get away with in a Petrol car?


The safe answer is none. However you might be able to get away with a very low contamination ratio. That being said, we always highly recommend draining anything over a 5% contamination ratio asap.

I know about petrol in diesel, but what about Super Unleaded?


Putting Super Unleaded, or Shell V-Power, BP Ultimate Unleaded, etc, will have the exact same effect as putting regular unleaded petrol in your diesel car and will need to be drained out and flushed.

Will getting you to do a fuel drain void my warranty?


No! The EU Block Exemption Regulations clearly state that "the work can be carried out by as long as that garage uses manufacturer approved parts and correctly follows the manufacturer's service schedule."

Can I top it up with Petrol and add some 2-stroke oil?


This might work on some vehicles in some cases, but in the majority on instances it won't and you risk damaging the Lambda sensors as well as fuel pump and injectors, just as a regular misfuel.

Get in Touch

In case you have any queries or need some assistance please Contact Us!
We can get you going again.

24 hour Vauxhall Helpline

0333 366 0103

Our Corporate Office

Fuel Fixer Ltd, Linx House, 147 London Road, East Grinstead, RH19 1ET


Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained