Incorrect fuel in your Vauxhall Speedster? Diesel in a Petrol Vauxhall?

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


Filling up with Diesel in a Petrol Vauxhall is a regularly occurring problem. And exactly what you need to do about it varies according to an assortment of things. Assuming you want to know what you need to do to sort it out then keep on reading.
These are the most crucial factors to to consider whenever making a decision whether to get a fuel drain:

  1. Exactly how much Diesel have you put into the Vauxhall, taking into account that the fuel tank capacity of the Vauxhall Speedster is most likely approximately 36 litres?
    1. A modest quantity of Diesel, as little as 1.8 litres of Diesel in a Petrol Speedster will most of the time not necessarily be a significant problem. Experience has taught us that quantities less than 1.8 litres (close to 5% of the fuel tank capacity) is oftentimes capable of being completely diluted simply by thoroughly filling the rest of the tank with Petrol.
      It is pretty uncommon to encounter an automobile suffering from difficulties due to under 5% incorrect fuel contamination. Keep in mind it is very uncommon - not impossible to encounter. You can get some vehicles that won't stand any level of fuel contamination at all.
    2. In between 1.8 and 3.6 litres of Diesel in the Vauxhall (from 5 to 10%) is really a 50/50 situation. Our practical experience has shown that as many people get away with it as all those who break down. Any time you are figuring out whether or not to risk it and basically top it up consider that it is just like gambling everything on black - you have a 50/50 chance of it working.
    3. Anything over 3.6 litres of Diesel in your Petrol Speedster should straight away be drained since your probability of getting away with that quantity of contamination is more than likely lower than one in fifty - genuinely huge odds.
  2. Put some Diesel in a Petrol Vauxhall and drove it: Have you noted any kind of performance difficulties after putting the wrong fuel in your Speedster? In that case, get it drained irrespective of the quantity of Diesel or even the contamination ratio. Proceeding to run running a car that is currently beginning to suffer the consequences of wrong fuel contamination will probably definitely result in even more harm affecting your fuel system.
  3. Are you interested in assurance?
    In that case get it drained. No matter the contamination percentage, there is always some amount of danger caused by running a Petrol engine on fuel contaminated with the incorrect fuel. Probable results of driving a car on the wrong fuel can include the engine refusing to start, running lumpy, reduced power, degradation of the high-pressure pump, worn out or clogged injectors, etc. These are a few of the most typical Diesel in Petrol signs or symptoms, and in the event that you detect any of them then stop and have it removed right now.

Refrain from having any unqualified mechanic to try to fix your vehicle. We are Vauxhall experts and hold the qualifications and practical experience required to make sure 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 even put contaminated fuel in your Vauxhall Speedster?

Contact us for Help & Guidance

Give us a call and obtain straightforward recommendations and sensible assistance for your precise situation

We show up and drain it

We can come to you to carry out the full fuel drain & clean there on scene

Once carried out You Get Going Again

When we are done you will be able to get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain experts in the UK, having countrywide coverage, for Vauxhall motorists particularly. We mostly attend:

  • Unleaded petrol in Diesel Auto
  • Diesel in an Unleaded Petrol Car
  • AdBlue fuel 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 filling station forecourt, or even at your house, we can get you on the road again.

The Process

The process of draining Diesel from a Petrol car is in essence identical for most cars. Of course it may vary to some degree as every manufacturer has their unique fuel system. However it still essentially follows the below points:

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.

Call us

Should you have any queries or require assistance please Call us!
We are able to get you moving once 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