Bad fuel in your Alfa Romeo Spider JTDM? Petrol in your Diesel Alfa Romeo?

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


Putting Petrol in a Diesel Alfa Romeo is a very common error. And its remedy hinges on several different things. If you would like to know what you need to do about it then stay with me.
Listed here are the most important variables to consider whenever determining whether or not to have the car drained:

  1. What level of Petrol did you put into the Alfa Romeo, bearing in mind that the fuel tank capacity of your Alfa Romeo Spider JTDM is usually approximately 70 litres?
    1. A modest quantity of Petrol, something like 3.5 litres of Petrol in a Diesel Spider JTDM will in most cases not necessarily be a big problem. Experience has proven to us that an amount under 3.5 litres (about 5% of the fuel tank capacity) is very often able to be completely diluted simply by completely filling up the rest of the tank with the correct fuel.
      It's extremely unusual to encounter a car suffering from problems due to lower than 5% incorrect fuel contamination. Remember that it's infrequent - certainly not impossible to find. There are actually a number of motor vehicles that won't stand any degree of contamination in the slightest.
    2. In between 3.5 and 7 litres of Petrol in the Alfa Romeo (5 to 10%) is a 50/50 scenario. Our practical experience has proven that as many drivers get away with it as all those who don't. Any time you are trying to decide whether to chance it and simply fill it up bear in mind that it is the same thing as gambling it all on black - you have a 50/50 possibility of it working.
    3. Anything over 7 litres of Petrol in a Diesel Spider JTDM really should as soon as possible be drained seeing that your probability of driving with that level of contamination is very likely lower than one in fifty - really huge odds.
  2. Put Petrol in a Diesel Alfa Romeo and drove it: Have you noticed any kind of performance problems as a result of putting the incorrect fuel in the Spider JTDM? In that case, get it emptied regardless of the quantity of Petrol or even the contamination ratio. Continuing to drive running a motor vehicle that is now starting to suffer the effects of fuel contamination can just cause even more damage being caused to your fuel system.
  3. Do you want security?
    You should get it drained. Regardless of contamination percentage, there is inevitably some degree of risk affiliated with driving a Diesel vehicle on Diesel contaminated with the wrong fuel. Possible implications of driving on the wrong fuel normally include the motor refusing to start, running unevenly, losing power, degradation of the high-pressure pump, worn out or clogged injectors, and so on. These are several of the commonest Petrol in Diesel warning signs, and in the event that you observe any of them cease driving and get it drained as soon as possible.

Refrain from having any unqualified mechanic to try to fix your automobile. We are Alfa Romeo experts and hold the accreditation and knowledge necessary to make sure that you are back on the road with minimum hassle or trouble.

Put Petrol in a Diesel Alfa Romeo

Mistakenly put Petrol in a Diesel Alfa Romeo? Or possibly even put contaminated fuel in your Alfa Romeo Spider JTDM?

Contact us for Assistance & Guidance

Call us and obtain genuine guidance and sensible assistance for your specific circumstance

We show up and do a fuel drain

We are able to reach you to carry out the fuel retrieval & purge right there on scene

Once carried out You Get Moving Once again

As soon as we have completed you will be able to get back on the road and get on with your trip

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain professionals in the UK, boasting countrywide coverage, for Alfa Romeo motorists particularly. We mainly deal with:

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

We are Alfa Romeo specialists and have successfully drained hundreds of Diesel Alfa Romeo vehicles. Even if it's at the roadside, on a station forecourt, or even at home, we can get you going once again.

The Process

The technique of getting rid of Petrol from a Diesel car is in essence identical for virtually all vehicle makes. Obviously it does vary a bit as each make has their unique distinct fuel system. Having said that it still generally observes 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

Petrol in Diesel Questions

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

I put Petrol in a Diesel 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 Diesel car on Petrol 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 Petrol can I get away with in a Diesel 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 Diesel 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.

Contact Us

In case you have any enquiries or need our help please Contact Us!
We are able to get you moving 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