Bad fuel in a Smart Fortwo cdi? Petrol in a Diesel Smart?

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Smart Fuel Drain


Putting Petrol in a Diesel Smart is a common problem. And its remedy is dependent upon a number of factors. If perhaps you want to know what to do about this then continue reading.
Let us discuss the main factors to consider when determining whether to have it drained:

  1. What amount of Petrol have you put in to the Smart, taking into account that the fuel capacity of the Smart Fortwo cdi is most likely approximately 33 litres?
    1. A small amount of Petrol, less than 1.65 litres of Petrol in a Diesel Fortwo cdi will in most cases not necessarily be a massive problem. Experience has demonstrated to us that an amount under 1.65 litres (which is almost 5% of the total fuel tank) is generally capable of being sufficiently diluted through completely filling up the rest of the tank with Diesel.
      It is highly uncommon to come across a car or truck experiencing difficulties due to below 5% incorrect fuel contamination. Remember that it is very uncommon - in no way impossible to find. There are actually a number of automobiles that don't endure any quantity of fuel contamination in the slightest.
    2. Somewhere between 1.65 and 3.3 litres of Petrol in the Smart (5 to 10%) is a 50/50 scenario. Our working experience has proven that as many people get away with it as those people who don't. When trying to decide whether to chance it and basically top it up remember that it is exactly like wagering it all on black - you have a 50/50 chance of it being ok.
    3. Anything over 3.3 litres of Petrol in a Diesel Fortwo cdi ought to right away be removed because your probability of driving with that quantity of contamination is more than likely less than one in fifty - truly long odds.
  2. Put some Petrol in a Diesel Smart and drove it: Have you spotted any performance concerns as a result of putting the incorrect fuel in the Fortwo cdi? If that's the case, have it emptied no matter the quantity of Petrol or even the contamination ratio. Continuing to run driving a motor vehicle that is beginning to suffer from the effects of wrong fuel contamination can definitely bring about more damage affecting the fuel system components.
  3. Do you want peace of mind?
    Simply get it removed. Regardless of the contamination percentage, there is inevitably some amount of danger connected with running a Diesel engine on fuel contaminated with the incorrect fuel. Possible results of driving a vehicle on the incorrect fuel include the motor refusing to start, running unevenly, loss in power, degradation of the high-pressure pump, worn or bunged injectors, and so forth. These are several of the most typical Petrol in Diesel signs and symptoms, and should you detect any of them stop driving and get it drained as soon as possible.

Steer clear of getting any unqualified so-and-so to attend your vehicle. We are Smart experts and have got the credentials and practical experience needed to ensure you get back on the road with minimal hassle or trouble.

Put Petrol in a Diesel Smart

By mistake put Petrol in a Diesel Smart? Or perhaps even put contaminated fuel in your Smart Fortwo cdi?

Give us a call for Assistance & Recommendations

Contact us and get honest recommendations and practical help for your specific circumstances

We come out and drain it

We are able to come to you to do the complete contaminated fuel removal & cleanse there on scene

All done & You Get Going Again

When we are done you can get back moving and get on with your day

Wrong Fuel Drain Specialists

We are the primary wrong fuel drain experts in the UK, offering nationwide coverage, for Smart motorists in particular. We principally attend to:

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

We are Smart specialists and have successfully drained thousands of Diesel Smart vehicles. No matter if it is roadside, on a station forecourt, or even at home, we are able to get you moving again.

The Process

The system of extracting Petrol from a Diesel vehicle is generally similar for virtually all vehicle makes. Naturally it may differ a bit as each brand has their own distinct fuel system. Even so it still essentially observes the following points:

Petrol in Diesel Smart

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Smart

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Smart

Vehicle Restart

Get the car up and running again

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Petrol in Diesel FAQs

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.

Get in Touch

Should you have any enquiries or require assistance please Call us!
We can get you on the road once again.

24 hour Smart Helpline

0333 366 0103

Our Business Office

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

Weekdays: 9am to 5pm

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