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BP laboratories carried from 5 years ago looking for a new technology that would improve the car's performance. During the process they realized that the dirt was the most important in terms of performance impoverishment refers factor.
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Roadside Assistance is an essential coverage at all car insurance, Since no one is exempt from suffering on occasion an incident with the car (not boot, has a puncture, have lost keys, etc.) that prevents you from getting to work or take a trip.
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Today we live in a world in which everything is measured and valued, from which are the most active social networks until online store has more sales, but those rankings do not always take into account all the variables and displays a button.
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Selling tires online is going strong, this channel has been a progressive increase in sales with an increase in 2015 3% of what the European market is concerned. Part of this sales success is being achieved thanks to the excellent prices offered by both the customer being the ultimate beneficiary.
With regard to Spain, the increase was greater. According to data published by the European Tyre Manufacturers Association -ETRMA, our country grows in this sector due to increased 21% of registrations and production and sale of tires driven by economic recovery. Figures in which has much to say online sales channel for tires, which has settled in a market increasingly competitive and with greater advantages for its customers. As noted, the increase in the number of customers has also led to increased competition in the industry, emerging companies engaged in the online sale of tires. This increase has resulted in an improvement in prices but also results in a problem for the customer, such as finding the best place to buy tires.
MDM we had access to excellent Comparative study of online tire sales, Conducted by the portal "Test Cars" that can greatly assist in the task of locating the web that best fits what we're looking for. According to this study, there are substantial differences in prices and services between different sales channels tires deserve a must compare the observed for identical models price variations ranging up to 37% for the Kumho Ecsta HM KH31, with an average price difference between the various e-commerce more than 20%.
To perform this study on "Test Cars" have chosen some of the models most sought after in several price comparators tires, with the top sellers during the past 2015 major brands and measures, emphasizing above the rest of the 205 / 55 r16, the best selling in our country. In total, we have compared seven models of the major online stores selling in our country. The first surprise is that in five of the seven models out victorious muchoneumatico.com, which sweeps concept Cheap tires. Specifically offers the cheapest tires Kumho Ecsta models HM KH31, EfficientGrip Performance Goodyear, Pirelli Cinturato P7, Michelin and Dunlop Sport Primacy 3 Bluresponse. In the ranking of stores with lower prices placed second Pop Gom, which is the cheapest in the model Hankook Ventus Prime K115 and Continental SportContact 6. While the third echelon of the ranking is Oponeo, which has the second best price for three of the seven models of the sample.
Comparison of services
In the field of services offered by these online stores is balanced thing given the possibilities offered by them in the purchase. As for the number of workshops that can change tires client, comes victor Tires Online with a total of 3.000 associated workshops ahead of Pneus Online who have in Spain with a total of 1.200 associated workshops. And what about the speed in shipping? In the race to get the first shipment Muchoneumatico wins with only 24 hours timeout after ordering. In the section on handling unanimous, since all offer free shipping, but with nuances, since only Oponeo not charge postage whatever our order, against the rest offer it from the second unit.
There is also a revolution in the forms of payment, Gom and being Pop Oponeo the greatest variety and options offer from classic as credit card and other newer Paypal as payment twice by phone or eWallet payment.
There are other minor issues but also should be included in the comparative such as the inclusion or not of the Ecotax in the shop price. In this case all except Neumatico Direct ecommerce include other than price store payment from 1,5 and 2 euros tax per tire. Finally, with regard to customer service, the thing fluctuates from which only offer email contact as Tire Direct to those who have up their own chat as i-neumaticos.es.
Following is the full chart we show comparative
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The transmission system or automatic transmission is in charge of changing the gear ratio without user intervention when the vehicle is moving. In this way, the driver need not make the change gear manually. In such automatic transmissions, the gear ratios are obtained by epicyclic gears or planetary while in the manuals are performed with the called parallel gears.
How do automatic gearboxes arise?
The first automatic gearboxes arise in 1940, and its goal was twofold: to increase the number of users who could drive, and expand the market for manufacturers. In fact, it was not automatic transmissions 100%, but changed autonomously when the vehicle was already moving. In addition, they are working with a simple hydraulic oil and not with ATF, which did not develop until years later.
Today, the automatic gearbox predominant is hydraulically operated by a fluid coupling or a torque converter and a set of planetary providing the required multiplication. One of the most important components of the automatic transmission is the oil pump which supplies lubricating fluid flow to all components and gears.
How an automatic change work?
The differences from a manual are pretty obvious. While in the manual, the driver must depress the clutch and move the lever on the automatic transmission This operation is performed by the vehicle by a control unit that detects pressure of the gas pedal or brake, and acts automatically to select and the proper gear.
What elements make up an automatic gearbox?
You make it clear to your operation, you must know what is formed parts:
- Torque converter.
- Planetary gear set.
- Bands of friction material for pressing planetary part of the game.
- Game clutches.
- Hydraulic system.
- Oil pump which pressurizes, lubricates and cools.
Types of automatic boxes
You should also know that there is only one typology in this case, so we would like to summarize:
- Torque converter: Mounted in the first automatic transmissions, it is formed by a round housing that comprises two turbines, one connected to the engine and one to the gearbox. When the motor rotates, oil is driven projecting into the turbine. The higher the speed more oil will force that will cause the turbine to rotate the vehicle and start driving. Today it is one of the most reliable in terms of quality and price boxes, and is used in high-powered vehicles.
- Piloted manual gear box: It is a mix between a manual gearbox and an automatic, and is called CMP. It incorporates an internal clutch that automatically triggers the fly. Even with no clutch pedal, should lift the accelerator pedal to the change occur to avoid abrupt change of gear. As a result we get a very similar to the manual transmission but without pressing or change gear response.
- Gearbox continuously variable: It is similar to the torque converter system, but incorporating a development system consisting of two pulleys connected by a chain that transmits engine power to the wheels of the box. Transmissions differ in the diameter on which the chain moves. Its main advantage is that hardly produces retention, so once launched does almost lack accelerate to maintain speed, resulting in a low fuel consumption.
- Direct-shift gearbox: It consists of two automatic gearboxes in one. The first is responsible for the odd gears and the second of the pair, thus changes occur in a matter of milliseconds, much faster than it could change a driver manually. When engaging a gear box, the other is ready to enter the next, so that more smoothly driving and improved consumption is achieved.
Maintenance of automatic gearboxes
It is a fundamental for the proper operation of the vehicle occurring element, it needs maintenance, which involves replacing transmission oil (ATEF) and filter. This must be done with a special machine that makes a complete transfusion fluid for the new ATF into the box changes completely clean and must be entrusted only to professionals.
In Spain, the automatic still not imposed as preferred by drivers. The last reportmade by Ford Motor CompanyIt tells us that 83% of European drivers prefer a manual transmission, and in Spain the figure rises to 95%. Therefore, if we have one, we must turn to industry specialists that guarantee us a correct repair and / or maintenance of the gearbox.