Oil change frequency set by the vehicle manufacturer, depending on oil properties andengine parameters. Most currently produced cars require oil change after driving 10 000 - 20 000 km or one year. Mileage intervals also depends on driving conditions. During city driving with frequent starts and stops the car with the engine at high speed it is recommended to change the oil even more frequently than every 15 000 - 20 000km.
Another factor affecting the oil change the terms of his kind. In the case of mineral oil isrecommended for replacement every 10 000 km, in the case of synthetic oils at 15 000 - 20 000 km.
When choosing oil, pay attention to the type of product (different for gasoline, diesel, turbocharged) and classification of viscosity (ratio, which determines the ability of oil to produce a specific layer to prevent contact between two metal surfaces inside the engine). The viscosity of oil varies depending on engine temperature, it is important to selecting the viscosity grade of engine oil according to the annual average temperature.
As you can see choosing the right oil if we do not have the exact manufacturer's recommendations (e.g. in the service book) is not a simple function, so feel free to use the tips AutoABC mechanics or the link below.
Given the road conditions in Poland, should be examined "geometry" of the front wheels before the start of each summer season. Such checks should be made whenever there when buying a used car, and in situations such as the wheel hit an obstacle or hole, and after any repair of the suspension. Before the control of each check and eliminate the slack in the suspension.
What should be monitored and what threatens the lack of geometry? Key in the geometry of four values: camber angle, caster angle, caster angle and toe.
If the wheel alignment is wrong, then followed by rapid, uneven wear on tires. Camberand caster angle, which controls the stability of the car while driving, because of itsaffect controll ability. Incorrect ahead of the kingpin causes instability in the car while driving. Proper toe eliminate the side-slip, in general improves driving stability and prevents excessive wear of the tires.
Shock absorbers are parts that wear out during operation of the car. Since the degree of this consumption depends on many factors, including driving style, road conditions, the condition of other parts of the vehicle suspension, you can not specify exactly how long it will remain smooth. It is estimated that in cars which run on our roads should withstand a distance of about 60-80 000 km. But because they have a significant impact on driving safety, it is recommended that control of a specialized service in every 20 000 km.
How do we know that the shock has already suited to the exchange?
Always be eligible to exchange those "leaked" to mechanical damage, corrosion, piston, bushings, rubber stamped, or simply do not hold the car. About not holding the car show: excessive tilting of the car sideways in corners and excessive "diving" to the front under braking and "Squat" during acceleration, vehicle dismantling of the track even after minor bumps, longer braking distances (even with ABS) easily falling into a skid on wet pavement and uneven tire wear.
How to prepare for periodic technical inspections? Cars with faults do not pass the technical examination. Diagnostic station employeein case of irregularities on a special certificate will be annotated. In case of serious defects that pose a direct threat to road safety registration certificate will be detained.To avoid this situation, it is worth before registration to make a similar review ofresearch on their own. Some defects - such as faulty lighting, felt knocking and looseness in the suspension, brakes weak, we can "diagnose" themselves. We also carry out such control in a workshop equipped with diagnostic devices. Then, in case of faults, we are immediately able to make on-site repair. After these preparations we go to the technical examination, the outcome should be positive.
When you make a replacement brake discs?
Exchange brake discs must be made when their trickness falls to a specified by the manufacturer as the minimum. Such information should be on target. Exchanges must be made also when the wheels are bent, they have cavities or are corroded. When changing discs, you should always install new brake pads.
When you check and replace brake fluid?
Studies show that seventy percent of the vehicles involved in road traffic isexcessively worn brake fluid, and that means lowering the boiling point and the loss ofanti-corrosion properties. Brake fluid is a liquid hygroscopic, absorbing moisture.When the water content in brake fluid exceeds a certain percentage of the quality ofthe brake falls, as contained in the brake fluid hot water steam causing traffic jams.So at least once every 10 000 km should check the quality of brake fluid, as well as its level in the reservoir at the pump the brake. The fluid should be replaced every 40 000km or every 2 years.
How is the life of brake pads and how to control them?
It depends on how you drive and whether you frequently move around the city (frequentuse of brakes) or on the road. Heavily worn blocks decrease the effectiveness of the braking system and lead to the destruction of the surface of the brake discs. Pleasecheck the condition of brake pads on the occasion of each review, and pay attention to any failure of the braking system, such as deterioration in performance, the sound of friction during braking, the brake pedal pulsation or steering wheel vibration when braking.
Why is air conditioning not working or not working properly? When you have to visitair conditioning service?
Air-conditioning efficiency depends mainly on the amount of refrigerant, which is filled system. Air-conditioning system will not function correctly in a situation when an agent is too little or too much. Too much refrigerant can damage the compressor. The specificity of the gas is that, despite the complete tightness of the system in the waning years of about 10 to 15 percent. factor, which lowers the efficiency of air conditioning (compressor has to work much longer to achieve the desired effect). Too little refrigerant, causes so that even though virtually continuous operation of the compressor can not be achieved sufficiently low temperatures, and higher continuous load on the engine will increase fuel consumption.
Therefore, the air conditioner requires regular servicing, it is best performed once a year, the least every two years.
For servicing air conditioning is required specialized equipment. Routine review of the system is connected to a special device that sucks the old agent, then check for leaks and if the test goes positively fills the system with fresh factor, and oil. The whole operation takes just over 30 minutes.
In a properly functioning air conditioning temperature emanating from the vents should be from 5 to 8 degrees C. The measurement should be carried out after a few or even several minutes after the inclusion of that ducts are properly chilled.
A very important function in the system A / C fully dryer, whose task is to absorb moisture from the system. It should be replaced after each broken, or compressor malfunction, and in properly operating system every two to three years. It is also regularly include pollen filter, which has a large influence on the ventilation of the cabin.
Climate control is also carried out each time before buying used cars.
How different is the timing belt and timing chain?
Timing belt is cheap and works very quietly. For this reason, it can be found in 75% of all engines in Europe. It consists of a layer of flexible, provided it is thick at 15 to 20 mm layer of fiberglass. On both outer sides of the timing belt is a mixture of rubber lined with very tough polymers. Over the teeth, the timing belt is placed nylon fabric.The whole strip is produced in the vulcanization process.
There are big differences in the profiles of the teeth. The first timing belts have teeth in the shape of trapezoids, cloves in gasoline was lower than in diesel engines. Today almost all the timing belts in May arcuate shaped teeth HTD-Profile (High Torque Drive). The size of teeth in gasoline and diesel is the same. Timing belt must be replaced immediately when the engine is leaking oil from the belt. Zaoliwiony timing belt could jump - which means certain death for each engine.
There are big differences in the profiles of the teeth. The first timing belts have teeth in the shape of trapezoids, cloves in gasoline was lower than in diesel engines. Todayalmost all the timing belts in May arcuate shaped teeth HTD-Profile (High TorqueDrive). The size of teeth in gasoline and diesel is the same. Timing belt must be replaced immediately when the engine is leaking oil from the belt. Zaoliwiony timing belt could jump - which means certain death for each engine.
Timing chain - overhead camshaft engine takes over the maintenance of propercontrol to regular opening and closing of the valves of the engine. It is important tovery carefully adhere to these periods. Instead of timing belt with plastic can be usedfor this purpose a steel chain that resembles an ordinary layman bicycle chain. Timing chain connects the crankshaft to the camshaft. They are often connected to a timing chain, other parts such as engine oil pump and water pump or injection pump. Timing chain tensioners are responsible for ist proper tension. Through the use of high temperature and timing chain extends over time, and without proper stretching couldjump, causing engine damage. Advantages of the timing chain timing belt are: greater durability and less space. Disadvantages: The timing chain is more expensive andnoisier than the timing belt.