premium oil for Audi Car breakdown on the road - what to do?
Car crash can occur when you least expect. Very often there is a situation on the road, when we are far from home and from the proven mechanics, to which we have confidence. In such a situation, the best solution is to use a special insurance that allows you to tow the car and ensures delivery of a replacement vehicle. If we can not take advantage of such a solution, there remains nothing else but to bring the vehicle to the nearest garage which is located in the area. Fortunately, nowadays universal access to the Internet allows you to quickly locate such a facility. But in order to guard against such problems, it is regularly serviced and auto repair any faults on time.
Service cars
Servicing cars is very much needed almost every driver. In the event of sudden failure of the car just a phone call to a friendly mechanic to help it through the phone indicate the source of the problem and identify a solution. However, most often it is necessary to visit a garage. I must admit that if we go about our work in this profession really honestly, we can even start earning well. Of course, the most profitable is to conduct your own garage, but working as a mechanic can also be one of the more rewarding physical activity. For many men, it is also very enjoyable because of the interest in automobiles.
Coating metal parts
Motor oil is a lubricant used in internal combustion engines, which power cars, motorcycles, lawnmowers, engine-generators, and many other machines. In engines, there are parts which move against each other, and the friction wastes otherwise useful power by converting the kinetic energy to heat. It also wears away those parts, which could lead to lower efficiency and degradation of the engine. This increases fuel consumption, decreases power output, and can lead to engine failure.
Lubricating oil creates a separating film between surfaces of adjacent moving parts to minimize direct contact between them, decreasing heat caused by friction and reducing wear, thus protecting the engine. In use, motor oil transfers heat through convection as it flows through the engine by means of air flow over the surface of the oil pan, an oil cooler and through the buildup of oil gases evacuated by the Positive Crankcase Ventilation (PCV) system.
In petrol (gasoline) engines, the top piston ring can expose the motor oil to temperatures of 160 °C (320 °F). In diesel engines the top ring can expose the oil to temperatures over 315 °C (600 °F). Motor oils with higher viscosity indices thin less at these higher temperatures.
Coating metal parts with oil also keeps them from being exposed to oxygen, inhibiting oxidation at elevated operating temperatures preventing rust or corrosion. Corrosion inhibitors may also be added to the motor oil. Many motor oils also have detergents and dispersants added to help keep the engine clean and minimize oil sludge build-up. The oil is able to trap soot from combustion in itself, rather than leaving it deposited on the internal surfaces. It is a combination of this, and some singeing that turns used oil black after some running.
Rubbing of metal engine parts inevitably produces some microscopic metallic particles from the wearing of the surfaces. Such particles could circulate in the oil and grind against moving parts, causing wear. Because particles accumulate in the oil, it is typically circulated through an oil filter to remove harmful particles. An oil pump, a vane or gear pump powered by the engine, pumps the oil throughout the engine, including the oil filter. Oil filters can be a full flow or bypass type.
Źródło: https://en.wikipedia.org/wiki/Motor_oil