Why your car’s diesel goes up and gasoline doesn’t

For several months, the rise in fuel has affected drivers’ pockets on a daily basis and the questions are recurrent. When will the price of diesel and gasoline go down? Why does it go up? These are two questions that are more present than ever, but also one that is becoming more noticeable in recent times: what happens to diesel and why does it rise so much compared to gasoline?

Diesel returns to the uptrend

Why your car's diesel goes up and gasoline doesn't

It is not new that gasoline and diesel have experienced significant growth and have reached all-time highs. A rise that affects even more thinking about the cost of daily journeys and long trips by car, whether in a combustion or hybrid technology.

Likewise, and despite the fact that an upward trend has been installed for weeks, after a summer in which it seemed that prices were recovering, the truth is that diesel has returned to close to 2 euros per liter in recent days.

However, and as we will see below, this is something that remains precisely with diesel fuel, since gasoline does not seem to be affected (or at least not as much). What is the reason for this and why is there this difference? Well, reality leads us to what is known as the ‘feather rocket’ effect.

The factors of the ‘boom rocket’ effect

As such, gasoline tends to be more expensive than diesel, but for some strange reason, diesel tends to rise in price much faster than diesel. To what do you owe this situation? Neither more nor less than the speed of acquisition of this fuel by service stations.

Or what is the same, the ‘pen rocket’ effect. Many factors come into play here. The first is fear and expectations . Given the forecasts that the amount of crude oil in the market will be reduced, its price begins to rise. It is one of the effects that producers are looking for: to prevent the price of oil from falling below certain limits or from accumulating too much crude in the form of reserves and, therefore, losing control over its price.

Diésel gasolina cohete pluma

Thus, the cost of fuel increases for the public when gas stations buy fuel and pay a higher price for it . The sum of all these factors means that in the face of any minimal change that alters oil production or casts doubts about its future, prices rise rapidly like a rocket, but then they do not fall as quickly…

Its rise becomes more noticeable, but its descent is slower

And why does it happen more abruptly in the case of diesel? Well, because there is a majority of vehicles with a diesel engine in the Spanish car park and, as a consequence, diesel tanks run out before. This fuel is purchased more frequently, therefore, and for this reason its increase in prices becomes more noticeable day by day for drivers.

This is where ‘the pen’ comes into play. Because despite the fact that the price of fuel rises rapidly like a rocket, they do not fall at the same speed. In fact, prices tend to go down very slowly , like a feather.

The price of gasoline is far from its historical maximum, which was 2,152 euros/litre, although it is still 12% more expensive than before the war. Instead, as we say, oil is sold at prices prior to the armed conflict.