Tank Sizes for Petrol in a Diesel Hyundai
Once you've put petrol in a diesel Hyundai, the capacity of the fuel tank in your model decides what share of the mix in there is now petrol. Our page lists the fuel tank sizes throughout the diesel Hyundai range, and every model gets a page of its own, linked below.
Whatever the capacity, the guidance now it has happened is to keep the engine off then ring Petrol in Diesel, and we'll drain your car where it is.
Fuel tank sizes throughout the diesel Hyundai range
Depending on the model and the version, a diesel Hyundai carries a tank of somewhere from 35 to 85 litres.
For the Elantra, the biggest tank takes 55 litres.
In our figures, the fuel tank on the ix35 holds 58 litres at the most.
There are 41 versions among the 19 diesel Hyundai models we cover, and each model gets a page giving the tank on every one.
What a few litres amount to for wrong fuel in your Hyundai
How full your tank was when you filled up decides the proportion of petrol, as wrong fuel in your Hyundai mixes with whatever diesel was still there. How much petrol gets to the engine rests largely on the level in the tank. In a tank of up to 85 litres that is nearly full, a couple of litres remain a small part of the total, and in a tank sitting near empty the same few litres make up much more of what it would draw.
How much petrol is too much is something people frequently ask. Running your engine is what carries the blend from your tank and through the pump and the injectors, so the more useful thing to find out is whether it has run.
With a small amount, a fuel drain is generally all the vehicle needs.
The engine options across the diesel Hyundai range
The badges on diesel Hyundai models within our figures read CRDi and TD.
Engines across the range run from 1.1 litres to 3.0 litres.
Before you phone, it's worth reading the badge on the back and the model name, as they tell us which one you have. If you're not certain, ring anyway and we'll figure it out with you.
What happens with AdBlue in a diesel Hyundai
A bigger tank does not help with AdBlue. With AdBlue in a diesel Hyundai, the diesel sitting inside your tank can't dilute it. Being mostly water, AdBlue keeps separate from the diesel and sinks to the base, which is where the fuel pump pulls from. Even a small amount ends up in the fuel lines.
As the water in AdBlue evaporates, the urea left behind forms crystals in the fuel lines and the fuel filter, and AdBlue doesn't ignite or give the fuel pump any lubrication either.
A blue cap and a narrower nozzle identify the AdBlue filler on a diesel vehicle with an AdBlue tank of its own, and it commonly shares one flap with the diesel filler.
A fuel drain on your Hyundai, explained
A fuel drain on your Hyundai clears the whole tank, however big it is on your car, and it is done where your car is standing. Fresh diesel goes in once the contaminated fuel has been pumped out and the lines and the filter are flushed, and then the fuel system is primed and the engine started.
On the Accent that means a tank of up to 45 litres.
When we finish the drain, the vehicle is free to drive away on fresh diesel.
AdBlue removal from a diesel Hyundai
Emptying the tank entirely is how AdBlue removal from a diesel Hyundai starts, because AdBlue doesn't mix in and settles to the base instead. If the engine has been run, we rinse the lines and the filter through as well and replace the filter if needed.
This covers AdBlue that has gone into the diesel tank, not removing or disabling the AdBlue system on the car.
What a fuel drain on a diesel Hyundai costs
Two call-outs on the same model can be rather different, so we do not publish a fixed price. Whether the vehicle has been started or driven changes it most. After that it depends on how much went in against the size of your tank, whether petrol or AdBlue was put in, and where your car is. Those details are what we need to explain what the work takes. Ring with them ready.
Your tank questions on petrol in a diesel Hyundai
Which diesel Hyundai has the largest tank?
The H-1 carries the largest fuel tank in our figures, at up to 85 litres, while the i10 has the smallest.
Does a larger tank make petrol less of an issue?
A larger tank means a few litres make up less of the whole, but that petrol is still in there and still reaches the pump when your engine runs. A drain removes all of that while your car is turned off.
My precise version: where is its tank size listed?
Open the page for your model, linked below, and each version our figures cover is given with its tank.
What counts as wrong fuel in my Hyundai?
It means anything put into the diesel tank that is not diesel, so petrol of any type, including super unleaded, or AdBlue, which has its own dedicated tank.