Wrong fuel mistake can be broadly categorized under two heads – Unleaded in Diesel Car and Diesel in Petrol Car. Most of the motorists, who are aware of the causes and consequences of loading wrong fuel into car tank, shiver at the realization that they have installed unleaded petrol into diesel cars. Is there anything to worry about or are they making a mountain of mole hills? Let us examine the fact.

Every fuel recovery agency will tell you that they receive significantly lower number of ‘diesel in petrol’ car incidents in respect of the opposite cases. Why? It can be contributed to mismatch between the width of nozzle in diesel pump at the fuel court and opening of a petrol car tank. On the contrary, the diameter of an unleaded petrol pump finely matches with an opening of a diesel car tank and that creates the problem.

Now the question is why unleaded petrol is considered a heavy problem for a diesel car. There is some reality to it. Petrol, while going through the fuel pipe, tends to scratch off diesel coating. After reaching engine, it does the same thing. As a result, components come in direct contact with each other in absence of diesel lubrication and that leads to their decaying.

The tiny parts of the lubrications, which are stripped off by unleaded petrol, further get mixed with wrong fuel and add to volume of fuel mixture.

Can a little amount of mixture create havoc problem?

If it is diesel in petrol and there is very little amount of wrong fuel in car tank, chance is almost nil that your car will sustain damages. However, I will always recommend fuel wrong fuel recovery because if you are not in luck, even a small amount of mixture could cause damages to your car. And if it is unleaded into your diesel car, I will mince no words in saying that early recovery is a must, no matter how much you have loaded.

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