Contaminated fuel in your Alfa Romeo 159? Diesel in your Petrol Alfa Romeo?

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


Filling Diesel in a Petrol Alfa Romeo is a common mistake. And its solution is determined by a few factors. In the event that you would like to find out what you should do to fix it then stay with me.
Here are the most crucial variables to to consider whenever choosing whether to have a fuel drain:

  1. How much Diesel did you put into the Alfa Romeo, taking into consideration that the fuel tank capacity of your Alfa Romeo 159 is usually approximately 70 litres?
    1. A tiny amount of Diesel, less than 3.5 litres of Diesel in a Petrol 159 will usually not necessarily be a major problem. Experience has demonstrated to us that anything under 3.5 litres (5% of the entire fuel tank) is frequently capable of being completely diluted by thoroughly topping up the tank with the correct fuel.
      It is highly rare to encounter a motor vehicle having problems due to below 5% incorrect fuel contamination. Keep in mind that it's rare - not impossible to encounter. You can get certain vehicles that don't stand any level of contamination in the slightest.
    2. Between 3.5 and 7 litres of Diesel in the Alfa Romeo (5 to 10%) is a 50/50 scenario. Our experience demonstrates that as many drivers get away with this as all those who break down. Any time you're deciding whether to chance it and just simply fill it up recognise that it is just like gambling everything on black - you've got a 50/50 chance of it working.
    3. Anything over 7 litres of Diesel in your Petrol 159 must straightaway be drained out since your likelihood of succeeding with this amount of contamination is undoubtedly less than one in 50 - really huge odds.
  2. Put Diesel in a Petrol Alfa Romeo and drove it: Have you seen any kind of performance difficulties since putting the bad fuel in your 159? If so, get it emptied irrespective of the quantity of Diesel or the contamination percentage. Proceeding to run driving a car that is beginning to suffer from the effects of wrong fuel contamination will just end up in progressively more damage affecting the fuel system.
  3. Are you interested in reassurance?
    You should get it drained. Regardless of contamination ratio, there is always a certain level of danger in connection with running a Petrol engine on fuel contaminated with Diesel. Probable consequences of driving on the incorrect fuel can include the engine not starting, running lumpy, lack of power, degradation of the high-pressure pump, worn or bunged injectors, and so forth. These are a few of the most frequently seen Diesel in Petrol signs and symptoms, and should you notice any of them then stop driving and get it drained immediately.

Don't just get any jack-of-all-trades to try to repair your car. We are Alfa Romeo specialists and hold the qualifications and expertise necessary to ensure that you get back on the road with minimum hassle or trouble.

Put Diesel in a Petrol Alfa Romeo

Mistakenly put Diesel in a Petrol Alfa Romeo? Or even put contaminated fuel in your Alfa Romeo 159?

Contact us for Help & Guidance

Give us a call and get straightforward guidance and sensible help for your exact circumstance

We arrive and do a fuel drain

We can go to you to perform the full fuel removal & cleanse right there on scene

Once done You Get Moving Again

Once we have finished you should be able to get back on your way and get on with your day

Wrong Fuel Drain Specialists

We are the top rated wrong fuel drain experts in the UK, boasting countrywide coverage, for Alfa Romeo motorists in particular. We principally fix:

  • Unleaded petrol in Diesel Car
  • Diesel in Unleaded Petrol Auto
  • AdBlue fuel contamination
  • Water contamination

We are Alfa Romeo specialists and have successfully drained hundreds of Petrol Alfa Romeo vehicles. Regardless of whether it's at the roadside, on a filling station forecourt, or even at your house, we are able to get you moving once again.

The Procedure

The technique of removing Diesel from a Petrol vehicle is generally identical for the majority of motor vehicles. Needless to say it can vary a bit as every brand has their own different fuel system. However it still follows the below principles:

Petrol in Diesel Alfa Romeo

Fuel Drain

Empty the Fuel Tank

View more
Wrong Fuel Drain Alfa Romeo

System Flush

Clean out the fuel lines & pumps

View more
Petrol in Diesel Drain Alfa Romeo

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

In the event that you have any queries or want some assistance please Contact Us!
We are able to get you moving once again.

24/7 Alfa Romeo Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

Important Info

Fully Insured

VAT Registered

APEX Certified


Fully Mobile

Professionally Trained