What fuel I choose? ¿Premium or regular gasoline and diesel?

What fuel I choose? ¿Premium or regular gasoline and diesel?

Almost all motorists (currently saved those who use electric cars, tied to their outlets) are required, more or less often, to go to a service station refueled our car, all depending on the size of our warehouse, which spends the vehicle and kilometers to do with it.

Typically found in the pump gas stations at least, four proposals for fuel: two "pistols"for gasoline next to so many for gasorI read, so that everyone can choose between the pair of fuel to the engine of your car works.

The premium, up almost 9 percent more expensive

Between them petrol and diesel, among which can be considered premium and those who are not, the Unlike mtos obvious that does not escape anyone (though not always be checked at a glance) is the price. Of course, it varies from one to other stations the price differential that may exist between each pair of fuel. For example, in the closest to my home three gas stations, and just a few hours ago, I have observed that the "cheap" gasoline was 1.329 euros per liter in all, while the "face" was 1,433, 1,447 and 1,456, ie, to 7.3 percent more expensive, 8.2 and 8.7 respectively.

In diesel also had overlap between the three stations (it is not clear what happens when competition is across the street or on the next block): 1,269 euros per liter for all. The discrepancy was in the price of diesel "premium" affordable less than two, 1,326, 1,330 and 1,339 euros per liter, therefore, varying between 4.3 and 5.2 percent.

Who valued much the way you spend your money, that is, the vast majority of whom sure you are reading these lines, it is very likely that opts for the cheaper fuel compared to more expensive. That is, the gasoline can cost up to 8.7 percent less than carries the label of "premium" or diesel that saves 5.2 percent. However, is this the best choice in the long run?

Having every drop of fuel

Answer this question (if you want the fastest way there you have the final paragraph) requires asking what we get for our money. That is, what is in each liter of fuel to refuel.

If we start gasolines, there are some clues dilucidadoras in the case of diesel and in the same product names: it is not uncommon for the most affordable gasoline also bears the name 95, while face 98 carries.

As you may have who do not know who that number really means, we explained: the octane rating of each fuel, the greater or lesser resistance to detonation, the self-ignition. This is nothing but inflammation of the mixture of fuel and air in the combustion chamber before the spark plug has occurred for explosion. Therefore prematurely.

Okay, you say, but what is good or bad for my car to be one or the other, because if it is higher, the less likely I'll have that this inflammation to occur late? For the truth is that, in mostíto cars, is irrelevant refuel with íoctane index of 95 or 98; and only those in which it is expressly requested by the manufacturer (just look at what you put into the hatch fuel cap out of doubt), it may be necessary to opt for 98. It usually occurs in cars with "tight" engines or high displacement.

In addition, we anticipate one thing. Gasolines are sold at a stationorn service meet a specification (EN 228), that make the octane míminimum of 95 is served. So, step by laboratories fuel has made clear on other occasions (and so we even confirmed Repsol), which both 95 as 98 provide an íReal the nominal index which is usually higher.

The difference could be especially higher for the lower octane, which is not uncommon reach to an octane rating of 97. A kind of extra ball, no doubt, if you opt for the cheaper gasoline, whereas if your car needs 98, it may be a good excuse to use tooandn mtos economicormica, because the real difference is not such Octane (Do not forget that modern engines have knock sensors that adjust the ignition quality of the fuel, preventing engine damage, even in an extreme case, sacrificing power) and your wallet may thank you: in full of a deporsized siteñor half, say 50 liters, until something mtos six euros.

What they share the oil and Coca-Cola

However, there is something else that marks the difference between each other octane gasolines. It is precisely something every brand kept secret, as if it were his own forFORMULA of Coke. These additives and the proportionorn thereof which are introduced into the fuel tanks trucks, just before they leave the supply bases. There, the fuel becomes equal to whatever the oil company that will sell you, but at that time when gasoline will sell at the gas station Repsol, Campsa or Petronor, is different from that they serve in Cepsa, BP or any other, even that is not championed by any large company in the sector.

Each oil will add different components to fuels. some estton directed to comply with the regulations, for example, octane; but others, common to 95 and 98, to provide them with additional properties, which are usually not always specified, to improve their quality. Repsol, for example, is the largest company by volume of liters sold in our country and number of gas stations, it does not give us data on what type of additives added, but confirms that they are own patents based on exclusive agreements with major manufacturers of such components. Typically they pursue, inter alia, maintain clean vtoValves for admissionorNo prevent generationorn residues in ctocombustion chamberorn, protect from contact with water (including that which is stored in the deporGas station site, where usually reached by filtraorsubsoil n), etc..

As additives must be common, in view of this it remains clear that if you opt for gasoline 98 when your car needs only by 95, what will happen is you'll be throwing money into believing that you provide to better fuel engine.

Almost all motorists (currently saved those who use electric cars, tied to their outlets) are required, more or less often, to go to a service station refueled our car, all depending on the size of our warehouse, which spends the vehicle and kilometers to do with it.

Typically found in the pump gas stations at least, four proposals for fuel: two "pistols"for gasoline next to so many for gasorI read, so that everyone can choose between the pair of fuel to the engine of your car works.

The premium, up almost 9 percent more expensive

Between them petrol and diesel, among which can be considered premium and those who are not, the Unlike mtos obvious that does not escape anyone (though not always be checked at a glance) is the price. Of course, it varies from one to other stations the price differential that may exist between each pair of fuel. For example, in the closest to my home three gas stations, and just a few hours ago, I have observed that the "cheap" gasoline was 1.329 euros per liter in all, while the "face" was 1,433, 1,447 and 1,456, ie, to 7.3 percent more expensive, 8.2 and 8.7 respectively.

In diesel also had overlap between the three stations (it is not clear what happens when competition is across the street or on the next block): 1,269 euros per liter for all. The discrepancy was in the price of diesel "premium" affordable less than two, 1,326, 1,330 and 1,339 euros per liter, therefore, varying between 4.3 and 5.2 percent.

Who valued much the way you spend your money, that is, the vast majority of whom sure you are reading these lines, it is very likely that opts for the cheaper fuel compared to more expensive. That is, the gasoline can cost up to 8.7 percent less than carries the label of "premium" or diesel that saves 5.2 percent. However, is this the best choice in the long run?

Having every drop of fuel

Answer this question (if you want the fastest way there you have the final paragraph) requires asking what we get for our money. That is, what is in each liter of fuel to refuel.

If we start gasolines, there are some clues dilucidadoras in the case of diesel and in the same product names: it is not uncommon for the most affordable gasoline also bears the name 95, while face 98 carries.

As you may have who do not know who that number really means, we explained: the octane rating of each fuel, the greater or lesser resistance to detonation, the self-ignition. This is nothing but inflammation of the mixture of fuel and air in the combustion chamber before the spark plug has occurred for explosion. Therefore prematurely.

Okay, you say, but what is good or bad for my car to be one or the other, because if it is higher, the less likely I'll have that this inflammation to occur late? For the truth is that, in mostíto cars, is irrelevant refuel with íoctane index of 95 or 98; and only those in which it is expressly requested by the manufacturer (just look at what you put into the hatch fuel cap out of doubt), it may be necessary to opt for 98. It usually occurs in cars with "tight" engines or high displacement.

In addition, we anticipate one thing. Gasolines are sold at a stationorn service meet a specification (EN 228), that make the octane míminimum of 95 is served. So, step by laboratories fuel has made clear on other occasions (and so we even confirmed Repsol), which both 95 as 98 provide an íReal the nominal index which is usually higher.

The difference could be especially higher for the lower octane, which is not uncommon reach to an octane rating of 97. A kind of extra ball, no doubt, if you opt for the cheaper gasoline, whereas if your car needs 98, it may be a good excuse to use tooandn mtos economicormica, because the real difference is not such Octane (Do not forget that modern engines have knock sensors that adjust the ignition quality of the fuel, preventing engine damage, even in an extreme case, sacrificing power) and your wallet may thank you: in full of a deporsized siteñor half, say 50 liters, until something mtos six euros.

What they share the oil and Coca-Cola

However, there is something else that marks the difference between each other octane gasolines. It is precisely something every brand kept secret, as if it were his own forFORMULA of Coke. These additives and the proportionorn thereof which are introduced into the fuel tanks trucks, just before they leave the supply bases. There, the fuel becomes equal to whatever the oil company that will sell you, but at that time when gasoline will sell at the gas station Repsol, Campsa or Petronor, is different from that they serve in Cepsa, BP or any other, even that is not championed by any large company in the sector.

Each oil will add different components to fuels. some estton directed to comply with the regulations, for example, octane; but others, common to 95 and 98, to provide them with additional properties, which are usually not always specified, to improve their quality. Repsol, for example, is the largest company by volume of liters sold in our country and number of gas stations, it does not give us data on what type of additives added, but confirms that they are own patents based on exclusive agreements with major manufacturers of such components. Typically they pursue, inter alia, maintain clean vtoValves for admissionorNo prevent generationorn residues in ctocombustion chamberorn, protect from contact with water (including that which is stored in the deporGas station site, where usually reached by filtraorsubsoil n), etc..

As additives must be common, in view of this it remains clear that if you opt for gasoline 98 when your car needs only by 95, what will happen is you'll be throwing money into believing that you provide to better fuel engine.

Diesel in question

But what about the oil? For as much with gasoline, although the difference is that any diesel engine serves any commercial diesel Class A, it Always your norcetane number (Cetane index, less usual, expressed in diesel other issues such as the relationship in terms of density, boiling point, etc. and standard should be greater than 46) its Ttoabove 51. It is what sets European standard EN 590. However, the cetane number may be higher and the more we are, the more fuel ignition so that, for example, the better the quality of combustion is delayed. So they reduced, among other effects, the polluting emissions, including also promptly noise and vibration. These considerations should be able to serve from the most modest to the most sophisticated Diesel V6.

Gasorleos as Diesel e + 10 expending Repsol reach up to norcetane number 55. this elevationorn is achieved, as in gasoline, by additives which provides each trading company, usually a few drops per liter of fuel; However, here it is other added with different tasks. So the gasorleo receives a detergency, protecting other surfaces methtolicas deporsites or waste and fixing these walls creating a barrier.

There are additives that improve the flow of fuel fríor, avoiding solidificaciorn or creationorn wax crystals to collapse filters. Even other to improve lubricationorn, essential once, to meet the standards and achieve clean fuel the amount of sulfur in diesel fuel is lowered (the maximum prescribed by law is 10 mg / kg) because if sulfur dioxide into the atmosphere is emitted, contacting the steam generated acid rain; however, this reduction also leads to lower fuel lubrication capacity on elements such as the fuel pump.

Until There formulations químicas which are provided with the task of reducing the formationorNo foam, for filling faster and does not provide many splashes as when the fuel no leads.

Spends headed

So,offset or premium fuel? Y, except contributions of specific data in hand, mtos alltoof those obtained from the press office, it appears that no. And in any case, sorso if your car demands. That is, if your engine requires high octane gasoline probably compensate choose the one that is sold in the different stations as 98. Still, it seems sensible to make clear that the 95 would not be probably far in performance of that or even the engine of that car can be adapted without the use of cheaper gasoline, suppose a mechanical problem.

With gasorLeoorn the choiceorn may be mtoIt s clear, since all diesel engines iston ready to work with the same norminimum number of 51 cetane, established by law (Incidentally, there is no reference to how they should be premium in Royal Decree that protects those standards). Maybe use a higher cetane number, such as 55 who premium diesels arrive, they may agree to very specific situations, but hardly compensate for their overall benefits to the user.

This is supported by that, except modifying additives and octane, cetane, the rest appear to be shared, both formulation and quantity, petrol and diesel, are premium or not. The problem istoin that, as forFORMULA Coca-Cola, one of whom performs the formulationorn end of its fuel seems willing to disclose what the differences between them. And, with no answer, difít easily seem to sustainandTechnically these price increases.

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