What the Tank Holds: Petrol in a Diesel Fiat Doblo
Someone who has put petrol in a diesel Fiat Doblo needs to find out the capacity of its tank early on, because that settles what share of what is in there is currently petrol. This page lists the tank on each version of the Fiat Doblo we keep data for, plus the engines it was offered with.
Whatever the size, the guidance is the same after it has occurred. Call Petrol in Diesel with your engine left off. We'll come to you to empty the car just where it stands.
Fiat Doblo fuel tank capacity, by version
Every version of the Fiat Doblo in our figures uses the same diesel tank, holding 60 litres.
| Version | Fuel tank |
|---|---|
| Fiat Doblo 1.3 JTD | 60 litres |
| Fiat Doblo 1.3 Multijet 16V | 60 litres |
| Fiat Doblo 1.6 Multijet 16V | 60 litres |
| Fiat Doblo 1.9 D | 60 litres |
| Fiat Doblo 1.9 JTD | 60 litres |
| Fiat Doblo 1.9 Multijet 8V | 60 litres |
| Fiat Doblo 2.0 Multijet 16V | 60 litres |
What a few litres amounts to with wrong fuel in your Fiat Doblo
How full your tank was when you filled up determines the share of petrol, because wrong fuel in your Fiat Doblo blends with whatever diesel is still in it. In a tank which holds up to 60 litres, a couple of litres of unleaded added to an almost full tank is a minor share of the total, and the same few litres going into a tank that was nearly empty is a much greater part of what your engine would take in.
The amount of petrol that's too much is something people often ask about. The more useful thing to know is if the engine has run, as running it is what takes the mixture out of the tank and through your pump and your injectors.
Whatever the proportion, the safe thing is to get it drained, and with a modest volume a fuel drain is usually all your Doblo needs.
Diesel Doblo engines and their badges
Before you phone, it is worth checking the version name on the badge, since it tells us which engine your Doblo has.
Our data list Multijet and JTD badges on the diesel versions of the Doblo.
Among them the Multijet badge is the commonest, and the Doblo 1.9 JTD wears the JTD badge instead.
In the Doblo 2.0 Multijet 16V the engine is 2.0 litres, and in the Doblo 1.3 JTD it is 1.3 litres, the smallest of them.
When you ring, we can work out which version it is between us, even if you're not sure yourself.
When there's AdBlue in a diesel Fiat Doblo
With AdBlue, tank size plays out differently. AdBlue is largely water and doesn't blend with diesel, and so with AdBlue in a diesel Fiat Doblo, your diesel around it does nothing to weaken it. As it settles to the bottom of your tank, where the fuel pump pulls from, even a small volume gets into your fuel lines.
AdBlue does not burn and gives your pump no lubrication, and as its water evaporates, the urea left behind crystallises in your lines and your filter and eats into the metal around it.
The filler for AdBlue, on diesel cars that have it, often shares a flap with the diesel one and feeds a second tank. Where your Doblo has an AdBlue filler, its cap is normally blue and accepts a slimmer pump nozzle than the diesel one.
Fuel drain on your Fiat Doblo
The whole tank is cleared in a fuel drain on your Fiat Doblo, however big the tank is in your version, without the car moving from where it stands. Fresh diesel is put in once the contaminated fuel is pumped out and your fuel lines and the filter are cleaned, and then your system is primed and the engine started.
Left at home or still at the pump, your Doblo receives the same drain. After the drain is complete it is running on clean diesel and you can take it away.
What AdBlue removal from a diesel Fiat Doblo takes
With AdBlue sitting at the bottom of the tank rather than mixed in, AdBlue removal from a diesel Fiat Doblo starts by emptying your tank entirely. An engine that has been started means purging your filter and lines through too, and changing the filter if it needs it.
AdBlue that has gone into the diesel tank is the topic here. Turning off or taking out the car's AdBlue system isn't part of that.
How the quote of a fuel drain on the Fiat Doblo is worked out
The same model can make for very different call-outs, which is why we do not list a fixed price. The biggest factor is whether anyone has started or driven the Doblo. Then comes the amount that went in compared with how big the tank is, what liquid it was, and where the car is at the moment.
We can let you know what is involved in the job once you call with those facts.
Tank queries about petrol in a diesel Fiat Doblo
Fuel tank capacity of the Fiat Doblo: how much does it hold?
60 litres, with every version we hold figures for sharing the same tank.
Does petrol matter less with a larger tank?
A bigger tank means a couple of litres make up less of the whole, yet the petrol is still there and still gets to your pump when your engine runs. With your Doblo switched off, a fuel drain clears all of that.
Diesel versions of the Doblo: how many do you list?
We hold figures for 7 diesel versions of the Doblo, so you can pick out yours in the table above by the model name on its badge.
Wrong fuel in my Fiat Doblo: what does that include?
Petrol counts whatever the grade, super unleaded included, and so does AdBlue that was meant for its own dedicated tank. Everything other than diesel in your diesel tank is wrong fuel.
Wherever the Fiat Doblo is, can you drain the car?
There's no reason to shift or start your car. Whether it's left on your drive or still on the forecourt, we come to it.