Incorrect fuel in your Seat Altea TDI? Petrol in your Diesel Seat?

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Seat Fuel Drain


Filling Petrol in a Diesel Seat is a regular mistake to make. And its remedy depends upon a few things. In the event that you would like to know what you should do to fix it then read on.
Here are the most important variables to think about when deciding whether or not to have your car drained:

  1. How much Petrol have you put into the Seat, bearing in mind that the fuel tank capacity of the Seat Altea TDI is normally about 55 litres?
    1. A tiny amount of Petrol, something like 2.75 litres of Petrol in a Diesel Altea TDI will usually not really be a major problem. Experience has proven to us that quantities less than 2.75 litres (which is 5% of the whole fuel tank) is frequently able to be sufficiently diluted simply by thoroughly topping the tank with the right fuel.
      It is extremely uncommon to find a car suffering from issues with under 5% wrong fuel contamination. Bear in mind that it's infrequent - in no way impossible to find. You will discover certain cars that will not stand any amount of fuel contamination at all.
    2. Somewhere between 2.75 and 5.5 litres of Petrol in the Seat (from 5 to 10%) is more of a 50/50 situation. Our experience has shown that as many drivers get away with this as those who break down. Any time you're deciding whether or not to chance it and just fill it up consider that it is very much like wagering everything on black - you have got a 50/50 possibility of it being ok.
    3. Anything more than 5.5 litres of Petrol in a Diesel Altea TDI ought to promptly be drained because your likelihood of getting away with this quantity of contamination is undoubtedly lower than one in 50 - really huge odds.
  2. Put some Petrol in a Diesel Seat and drove it: Have you noted any performance troubles since putting the bad fuel in your Altea TDI? If you have, have it drained no matter the volume of Petrol or even the contamination ratio. Continually driving a motor vehicle that is already starting to suffer the effects of wrong fuel contamination will probably typically cause more and more damage being caused to the fuel system parts.
  3. Would you like reassurance?
    Simply get it drained. Regardless of the contamination ratio, there is always some extent of risk linked with running a Diesel vehicle on fuel contaminated with Petrol. Probable implications of driving on the incorrect fuel include things like the motor refusing to start, running unevenly, losing power, degradation of the high-pressure pump, damaged or blocked injectors, and the like. These are several of the most frequently seen Petrol in Diesel signs and symptoms, and should you detect any of them then stop and get it drained asap.

Do not simply get any jack-of-all-trades to attend your vehicle. We are Seat specialists and possess the accreditation and knowledge needed to ensure you are back on the road with minimum hassle or worry.

Put Petrol in a Diesel Seat

Inadvertently put Petrol in a Diesel Seat? Or possibly even put contaminated fuel in your Seat Altea TDI?

Contact us for Help & Recommendations

Give us a call and receive honest recommendations and practical help for your exact circumstances

We arrive and do the fuel drain

We would reach you to undertake the contaminated fuel retrieval & clean right there on scene

Once done You Get Moving Again

When we have completed you can get back moving and get on with your trip

Wrong Fuel Drain Specialists

We are the leading wrong fuel drain experts in the UK, offering national coverage, for Seat motorists especially. We predominantly attend:

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

We are Seat specialists and have successfully drained thousands of Diesel Seat vehicles. Even if it's at the roadside, on a filling station forecourt, or even at your house, we are able to get you on the road once again.

The Procedure

The process of removing Petrol from a Diesel vehicle is essentially similar for most cars. Of course it can differ to some degree as every brand has their particular distinct fuel system. Even so it still adheres to the following points:

Petrol in Diesel Seat

Fuel Drain

Empty the Fuel Tank

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Wrong Fuel Drain Seat

System Flush

Clean out the fuel lines & pumps

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Petrol in Diesel Drain Seat

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.

Contact Us

In the event that you have any enquiries or need some assistance please Call us!
We can get you going once again.

24/7 Seat 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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