Deconstructing myths: I’ll save more, because it is diesel and spends less

That diesel engine spends less than a gasoline equal power to drive and true. There is a myth engines are inherently more efficient due to the higher energy density fuel. But is not true that you will be cheaper to have a diesel car . One of the most widespread in the automotive world myths, not only in Spain but also Europe. Buy a diesel is not a mathematical formula: have you thought about maintenance or urea refills? What is urea? You know how to treat a modern diesel?

never too late to learn and dismantle myths.

Let me be clear from already reduced consumption does not equal greater savings.

You’ve heard the phrase hundreds of times. Your friend announces that it has bought a new car: “I’ve bought diesel, which spends less” . For many years, we have sold as a panacea diesel savings. The current Spanish taxation has benefited and still benefits the diesel powered cars because their CO 2 are lower than a similar gasoline power. Consume less fuel, but many people forget or do not know the complexity of a modern diesel.

8000vueltas_trackday_2015_DM_mapdm_1 In many cases they are not even an ideal option for your needs. And if they come wrongly made, can go much more expensive than a gasoline car whose actual consumption is maybe two liters per hundred kilometers above. We will try to dismantle the myth that diesel is equal to saving a number of arguments. Likewise, I also want to make clear that diesel can itself be the best option for some drivers especially if they are to travel many kilometers mainly on road. Not even in town.

The new petrol spend very little

Moral: current gasoline engines consume much less than you think .

associate a gasoline engine to a greedy . In the past, this was true. Gasoline engines used very inefficient carburetion systems and generated its power base engine. 25 years ago a DC motor gasoline 1.6-liter four-cylinder was not getting to the 100 CV. The diesel were little tight then aspirated engines: despite being very underpowered, had very low consumption – among other reasons, thanks to the lightness of the cars of that time


transmisiones-180615-02 Today almost all modern gasoline engines resort to “downsizing” very small displacement engines, thanks to supercharging and direct injection throw figures like engine power to much larger, with tight consumption. It is common to see blocks of less than 1.5 liters reach the 150 hp, with actual consumption lower than 7 l / 100 km . Even high-performance engines with about 300 hp comply with consumption of less than 9 l / 100 km. We know firsthand.

To give an example: SEAT Leon Cupra 280 hp current consumed in normal use about 8 l / 100 km, an Alfa Romeo 147 GTA ten years ago – 3.2 V6 with 250 CV – not down 12-13 l / 100 km in mixed use. Diesel have also resorted to downsizing and still consume less fuel than modern gasoline, but gasoline engines no longer frighten the most painted with those averages more than 10 l / 100 km – entrenched in many cases – throwing last 15 or 20 years. The technique has evolved, much .


You know a modern turbodiesel care?

Diesel engines do not get along with very low returns or driving short distances.

A modern turbodiesel engine is a very complex artifact . Without going too deep into the mechanical differences between a diesel engine and a gasoline engine, a diesel engine components are subjected to much greater internal pressure than a gasoline equivalent. For a 1.6-liter diesel develops 120 hp, you have to resort to a VGT high pressure and blowing. Its system of common-rail direct injection works with expensive piezo electric injectors at pressures up to 2000 bar.

diesel33-1440px also antipollution systems are extremely complex . Due to the properties of diesel emit many more particles and nitrogen oxides to the increasingly strict EU regulations require reduced. To reduce the emission of particles and harmful gases to human health – and environmental – are turning to particulate filters, selective catalytic reduction or urea injection on exhaust . Why do you think that modern diesel no longer emit clouds of black smoke these?

car consumption is only one factor to consider in the decision-fuel diesel.

This highly advanced technology does its job, but it is not perfect has ideal conditions of operation . If we take the car turns too low, mechanical stress will cause long-term problems, and filled with soot particulate filter. If we make only short distances, greatly shorten the life of its anti-pollution systems, which require constant minimum temperature to function properly. The same happens if we do not get the diesel car in the city.

opel-nuevos-motores-diesel-110315-07-mdm As previously explained how to care for turbo engines in general, and particularly diesel engines in our two articles.

Think about maintenance and troubleshooting

This complexity of which I have spoken also translates into maintenance that must be religious and a reviews are more expensive than in a gasoline engine. Why? There are many more mechanisms to review, the oil is more expensive cars and art, you have to refuel urea. The urea – also called AdBlue – is an additive that is injected onto the exhaust to minimize nitrogen oxide emissions. Much of mechanical art diesel use AdBlue.

Most cars Euro6 AdBlue systems used to reduce emissions of NO x

Urea is usually stored in a tank located beneath the boot. The amount of urea to refuel is usually not high, but adds a few tens of euros for each invoice. And if it recharges your engine can enter safe mode and reduce its performance to the minimum until repostes urea … or stop working in full. Often requires the use of a crane and transportation to the workshop. Visit the article where we tell you all you need to know about AdBlue.

cuidar-motor-diesel-03-1440px it is a factor to consider, as the susceptibility to failure. A diesel engine properly treated and maintained is equally reliable than a gasoline , but the possibility of damage is high if the case is otherwise. And the problem is that faults can be very expensive . Each of the injectors of a common rail system can cost € 500, and an injection pump delves deep into the four figures. If you do not treat it right or do not respect the turbo maintenance intervals, it can be very expensive.

Think what you will use the car

The Spanish tax wrongly diesel sold us the formula for ultimate savings.

There calculators diesel-gasoline they say you will take to repay a far more expensive than petrol diesel car by itself. The problem is not usually take into account differences in the cost of maintenance, the cost of insurance or any faults that may arise. € 1,000 repairs can ruin all the mathematical formula. Do not say that these calculators are not used simply say to be taken as an approximation to reality , and have in mind that there are many more factors to consider.

margen-de-error-radar-mdm-03-1440px However, a diesel itself can be a good way of saving in some cases. If you’re going to make many kilometers a year and most of them are going to be road diesel you will get you to save and not suffer the problems described above. How many kilometers are “many kilometers?” There is no magic number. But not drive 20 km a day to get to work or make a couple of trips each year 2,000 km are not “many kilometers” . Or 15,000 kilometers a year could justify their purchase.

You must ask yourself other things. Are you going to pull your car beyond 300,000 km? Are you going to put up with 20 years with the same car or eight years have wanted to something different? Will you change your transportation needs? endure, 15 years your car without giving serious trouble? These are questions that affect this mathematical formula should not follow blindly. And they are questions whose answer is almost never a diesel car. Whenever you do not want to hurt your bank account, of course.


The laws of the future will not be lenient with diesel

You’ll save with a diesel? In some cases yes, many do not.

Motivational pages tell you to live in the present and not look to the future. And that’s fine, but take your car to this. is the second largest investment a person after a house , and is not an investment to be done lightly. With all these factors considered, there is an additional point to consider. And are restrictions on pollution that cities like Madrid or Barcelona will have to face very soon. When you see the beards of your neighbor to peel …

madrid-a1-skyline-01-1440px_1440x655c The restrictions possibly requiring gradual withdrawal of diesel cars in the center of large cities . A brand new Euro5 diesel purchased in 2011 might not enter the center of Madrid in a few years: we do not invent anything. Inside the M-30 Madrid diesel cars pay more for parking in the street. Nor did they say, but if you ever decide to link road tax on emissions of nitrogen oxides and particulates, diesel also will benefit.

Think about it when you change your car.

In motor: AdBlue in 10 questions and answers: what everyone should know diesel driver | When the diesel became the most absurd choice? | Did you know that most revolutionize your diesel engine prevents malfunction



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