Although the diesel engines as they live their moment of reputation is the lowest of the last few years, remain an option to be considered. There are manufacturers that are to be deleted from their catalogue in the medium term, starting from the smaller segments. There are manufacturers that sell very little diesel, see Toyota, one of every four sales. Then, what’s the point of buying a modern diesel?
The drawbacks already know: there are more pollutants, their reliability is not as legendary, they are more expensive to buy and maintain, they are susceptible to restrictions to the circulation in a few years… however, their strengths are not exactly to desperdiciarlas:
1. They are still ideal to make many kilometers
diesel engines thank prolonged efforts, and constants, such as travel many kilometres of dual carriageway, that is why they are the main choice in the transport of long-haul. Their systems anti-pollution, are the most effective driving at 2,000 RPM or more, since they generate exhaust temperatures more suitable to neutralize contaminants. What spoils the diesel is to fit it in the city and do a few miles on the road.
consumption continues to be obtained, and compared to more efficient technologies such as LPG or CNG, is unbeatable in terms of availability of places to refuel in any corner of the continent. In addition, the high autonomy of the tank allows refueling in very distant places, where fuel is more economic, and as well to dodge areas of higher prices. On the other hand, always consume less than a petrol 100% equivalent.
2. They are very resistant to long-term
Ignoring cases in which the reliability is not so good, the diesel engines can hold mileage very high, over half a million miles, without having to open the engine to change segments, shirts, etc To engine’s larger displacement, a priori more resistance to long-term efforts.
In terms of the filters and systems anti-pollution, the weakest points, they will last more time-a few more miles at high speed will do. it is Not essential to use the oil of highest quality, but long-term support by the lower formation of deposits of muck. The use of additives to correct and also maximize the duration over the years.
3. A current model complies with Euro 6
The regulations in the anti-pollution effect is Euro 6b. Although some models can only fulfill the role the compliance of the norm, it is sufficient for the purpose officers. A diesel Euro 6b receives the sticker, green/C of the DGT, the least polluting models of internal combustion traditional. And what about the ecology? There are cases of petrol engines that pollute more than a diesel current, mainly due to particles causing cancer, and urea/SCR of nitrogen oxides can be at bay in suitable conditions.
, The problems for circular will arrive first to the generations Euro 3 or earlier (2004 or before), then go for the Euro 4 and Euro 5, and ultimately will go in hunting of the Euro 6. You can blame the citizen who does not change a car with 15 years, but one that is practically new no, especially if you have counted with the greetings of the Administration.
4. Consumption is less variable in use demanding
petrol engines may significantly increase their consumption in sporty driving, pulling a caravan, with a roof/hood ceiling or above the legal speed limit. In these circumstances the diesel consume more, but the variation is less noticeable: have more efficiency than that of the gasoline-non-hybridized.
The diesel continue to be the leaders in peak torque, therefore they are suitable for tough jobs such as moving large, heavy cars, towing, driving off-road or to defy the surveillance of the radars. A good saloon can do 5 l/100 km or less, a cruise of 140 km/h, even with all the occupants on board. SUV-we do not ask for that, but worse would be to go to gasoline.
5. It is a mature technology and well-known
Virtually any mechanic can maintain a diesel engine, unlike technologies more exotic, requiring additional training. Whether it’s a service officer or a workshop quarter, sure that they have touched some diesel. As the maintenance of a diesel is more expensive, has more sense to do it outside of the official network for the price difference.
on the other hand, these engines have undergone remarkable advances in refinement: they are less noisy, less vibrones and less rough than its predecessors. Few brands are going backwards. A modern diesel can be as nice to use as a gasoline, and even the driver forget what hose has to pick up. There are exceptions, as always, but that is the trend.