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Petrol in Diesel

0333 366 0103

Have You Put Petrol in a Diesel Honda?

The engine is safest left off when it hasn't been run since you put petrol in a diesel Honda, and that covers shifting your car clear of the pump. In this position, the car generally needs only a fuel drain, as the petrol hasn't yet moved out of your tank.

Wherever a diesel Honda has stopped, including the forecourt, Petrol in Diesel drains it on the spot. The models are listed below, each with a page of its own, and you can call us first rather than trying anything on your own.

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Petrol in a diesel Honda: what to do right away

  • Leave your engine off, and the ignition too. On plenty of diesels, switching your ignition on is all it takes to start the fuel pump priming, which pulls fuel out of your tank on to your injectors.
  • Each litre of diesel added on top is more contaminated fuel for us to drain, and diesel Honda models take up to 65 litres, so don't top up to water it down.
  • Speak to the forecourt staff when the car is blocking a pump. They will usually help you roll the vehicle clear in neutral.
  • Once you phone 0333 366 0103, we want to know which model it is, where you are, how much you think was put in and whether the motor has been started. At first, the model name is enough, for instance the CR-V.

Wrong fuel in your Honda: why the motor matters most

The trouble starts when wrong fuel in your Honda is drawn out of your tank, and it is starting your engine that draws it out. The fuel injectors and the high-pressure pump rely on diesel passing through them for protection. Petrol dilutes that diesel, so the harm, where there is any, comes from driving on the mix.

Once the car has been driven, the right thing to do is pull over somewhere safe and turn the engine off. Catching it soon keeps permanent harm very unusual, and sorting it out wherever you have stopped is still possible.

Fuel drain on a diesel Honda

Diesel Honda cars and their fuel tanks

How big the tank is makes a difference, since the proportion of petrol in what is there is what counts, and a couple of litres matter more when the tank was almost empty.

Throughout the diesel Honda range, tanks go from 50 to 65 litres.

Our data place the largest tank on the Accord and the smallest on the Civic.

Our data take in 3 diesel Honda models. Each has a page of its own, showing the tank for each variant.

AdBlue in a diesel Honda by mistake

The first step is the same if you have AdBlue in a diesel Honda after it went in the incorrect filler. The key stays unturned, even if your car needs to be moved.

Consisting mostly of water with urea dissolved in it, AdBlue does not burn and does not blend with diesel. It settles to the bottom of your tank instead, just where your pump takes its fuel, and gives it no lubrication. As the water dries out, the urea crystallises in the pipes and the filter and eats into the metal around it.

Some diesel vehicles have a separate AdBlue tank with its own filler, commonly alongside your diesel filler under the same fuel flap. With a car that has one, you can usually tell the AdBlue cap by its blue colour and the smaller nozzle it accepts.

Fuel drain on your Honda: how we do it

We carry out a fuel drain on your Honda where the vehicle is, whether that's on the forecourt or on your drive, so there is no need to shift it. Draining your tank comes after we have found out whether the engine has run and what went in. Next, we clean the fuel lines and the fuel filter, put clean diesel in and prime the fuel system before starting the car.

We go once the car is back on clean diesel and running.

What AdBlue removal from a diesel Honda means

Like a petrol drain, AdBlue removal from a diesel Honda goes through the same stages, but we take more care at the bottom of your tank, where AdBlue settles. We rinse the fuel filter and the pipes through if the vehicle has been started, and replace the filter where needed.

The AdBlue system isn't taken out or switched off here. This means getting AdBlue out of the diesel tank.

The cost of a fuel drain on a diesel Honda

A set price is not shown on this page, because each job is different. Whether your engine has been started or driven changes it more than anything. Other things count too: how much went in against the capacity of your tank, whether it was petrol or AdBlue, and where your car is. We can tell you what will be involved when you ring with those answers.

Replies on petrol in a diesel Honda

Is there a diesel Honda you do not drain?

This page links to each diesel Honda model we hold figures for, and the drain itself covers any diesel car.

What count of diesel Honda models do you list?

There are 3 diesel Honda models on our list, and 11 variants between them.

Must my Honda go to the dealer?

No, a drain is done wherever your vehicle is. We have no connection with Honda or its dealers, being independent.

Does my insurance cover wrong fuel in my Honda?

It is worth looking at your insurance, as misfuelling cover is part of some but not all. We come out whatever it says.

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