According to statistics, many motorists have the wrong concept associated with the term difficult conditions operation. If you do not go into detail in the chemistry and physics of the processes that occur in the car system, you can see different modes operation. They take into account product quality, driving mode, weather, etc. But what exactly is meant by “difficult conditions”? For example, a long downtime of the car, or occasional use. After all, it is not for nothing that they say that the car should always drive. Everything is said correctly. If you do not start the engine for a long time, especially in winter, then in the future you will need to pay more attention to its diagnosis, as breakdowns may occur. And compared to an engine that is used every day, it will last less.
This is due to condensate, which can form inside the motor system during long break in use. When mixed with fuel, condensate is like an acid that corrodes the engine from the inside. So if, when buying a used car, they say that they almost never drove a car, then you should be careful. But often this is not true in order to sell the car as "new", and you should not worry too much. Daily short distance driving shortens the life of the engine. So when driving to and from work, the distance can be short, and driving on a cold engine also leads to condensation. This is especially important in winter.
Therefore, it is recommended that, before starting to move, stand idle for a couple of minutes, if this winter time, then it is better to warm up the engine longer. The "start-stop" mode in traffic jams also makes operation more difficult. Since a significant load on engine goes during the start of the movement, jerking in place will not lead to anything good, but due to the large number Vehicle on the roads, you can't get away from it. A bad influence on auto goes due to the fact that at these moments the oil heats up more and loses its properties more intensively. Also, when idle, the cooling system does not work well, which leads to heating of the oil. Riding with a heavy load is undesirable, such riding is considered driving on bumpy terrain, towing, frequent driving under a full load. All this entails a high load on the engine, and, accordingly, the oxidation and thickening of the oil. Frequent driving in muddy areas leads to increased wear car. These include places with dusty air or polluted roads. You may notice that when you go out into the street in clean shoes, upon arrival home they will be in a layer of dust, although not large, but they will be. In order to prevent this from happening, it is necessary to regularly wash the streets, but no one does this in our country.
Automakers make cars with clean streets in mind, and, of course, the oil change interval is calculated based on driving on clean streets. This dust pollutes not only the oil, but also other parts of the car that require replacement or cleaning. Also, following the example of clean streets, you can often see in the service book that the filters are changed every 60,000 km. Poor quality fuel and oil reduces the life of the car. It is clear that if these components are not of high quality, then unburned particles will settle in engine compartments, cylinders, and all this reduces the efficiency of work. All modern engines designed for quality fuel, but what we add and what they dilute, in the hope of earning more, no one knows. Express oil change does not lead to anything good. With such a replacement, a considerable part of the used oil can remain in the engine. Also, as a result of work, a sediment forms at the bottom of the pallet, which is not so easy to remove. If you carry out such an oil change, then it is better to carry out a traditional replacement soon.
When determining the intervals for changing engine oil, we are guided by the manual.
The interval for changing engine oil is always specified by the manufacturer of your car. in the manual (manual) or in the service bulletin (Service bulletin). As a rule, the manufacturer indicates the engine oil change interval in kilometers (or miles). There are also restrictions in the time period - 3 months -6 months - 1 year. The car can stand in the garage all winter and not go out on the road, and the oil in the engine will still lose its original properties - that is why the manufacturers have also introduced a temporary restriction. You can’t conclude “I roll on the mileage very little, so I will change the oil every 2 years.”
Deciding for yourself how often you change the oil, not based on the manufacturer's recommendations, is not right! Only the manufacturer of your vehicle, who designed and built your vehicle, knows best How often should the oil be changed? The car manual is a kind of bible, when making decisions, you should always look back at this document. Remember, your car was designed and built by thousands of engineers and specialists, they have already calculated and tested everything for us - there is no need to consider yourself smarter than VW or Toyota and reinvent the wheel. It is necessary to adhere to the manufacturer's recommendations as much as possible!
Rely on the manufacturer, but don't make a mistake yourself ...
But the manufacturer must also be able to interpret correctly! Recently, manufacturers have begun to increase the service intervals for changing engine oil. For the sake of economy, ecology, restrictive legislative acts of some countries, oil change intervals have increased markedly 30,000 km, 50,000 km, etc.
There are special "long-lived" oils for extended oil change intervals "LongLife". But such oils can only be poured with extended drain intervals into engines that are suitable for this! You can’t conclude “If I fill the VAZ Kalina with Longlife oil, then you can not change the oil for 30,000 km.” Kalina's engine will kill such oil much faster!
Extended oil change intervals are relevant for countries with a "mild" climate, with good fuel quality, with clean roads, quality oils, timely service. In severe vehicle operating conditions - such extended shift intervals can lead to premature aging engine oil and engine wear!
For example, when you try to start the engine at -30C, fill the crankcase with gasoline and eventually do not start, the oil liquefies, loses its properties under the influence of gasoline, and the manufacturer does not take this into account. You can drive 30,000 km on such spoiled oil and then guess where the wear comes from.
Example: In the list of approved Longlife-04 oils, BMW writes:
Use of Longlife-04 oils in gasoline engines only allowed in European countries (EU plus Switzerland, Norway and Liechtenstein). Outside this region, their use is prohibited due to the often questionable quality of the fuel.
Link to official document: BMW Longlife-04 approved oils. That is, for Russian conditions These oils are not suitable for extended change intervals!
What is severe operating conditions?
Severe operating conditions include:
- Poor fuel quality. Fuel never burns out completely. During the combustion of fuel in the engine, combustion products are formed - ash, soot, tar, sulfur, etc. Deposits form on the inner walls of the engine - soot, sludge, varnish, etc. How worse quality fuel, the more deposits and unwanted combustion products. Engine oil wears out faster! Russian oil already initially considered to be of lower quality due to high content sulfur, as well as heavy and cyclic hydrocarbons. To this we must add the peculiarities of the "Russian business" and the lack of strict control over the production and sale of fuel. The quality of fuel constantly jumps from refueling to refueling. Production of gasoline from 76th to 92nd by adding additives. Water condensate, sand, dirt in storage and transportation tanks, etc. All this affects the resource of engine oil! Therefore, at least somehow to protect yourself from these negative factors, it is possible only by gas stations at trusted gas stations And frequent oil change intervals! It is frequent oil changes that help to remove unwanted products from the engine, neutralize sulfur from burnt fuel, slow down oxidative processes, etc. No "super-long life" LongLife oil or PAO-synthetic with long drain intervals can miraculously remove all this from the engine.
- Trips over short distances. On short trips over short distances, the engine does not have time to warm up. The engine oil does not have time to warm up to operating temperature. Additives that neutralize the products of combustion of fuel work more slowly due to the slowdown of chemical processes in a cold engine. Low-temperature deposits are formed that clog the filter elements and impair the circulation of oil through the lubrication system. Operation of the engine in the "started - drove 5 km - turned off" mode leads to the transformation of the condensate formed on the inner walls into water. Water in the oil leads to oil flooding - premature "aging" of engine oil.
- Dusty roads, or roads that are treated with anti-icing agents. The air filter does not capture all dust particles - not a large number of still gets into the engine. It is also not uncommon for unfiltered air to enter the engine through the filter. Bad quality, abnormal air suction (cracked air hose, numb gasket), etc. When operating the engine in dusty conditions, dust particles accumulate during engine operation, cause abrasive wear of parts and reduce the anti-wear properties of the oil. In simple terms, dust and sand fall into piston-cylinder group and nothing good, of course it does not bring.
- Traffic jams, long trips low speeds, long "idle" on Idling. Constant acceleration and deceleration in traffic jams load the engine the most, the oil is used up faster. At idle (XX), the oil pressure in the system is several times lower than at full speed - the oil enters the engine components, not as well as it does at full speed along the highway. The same happens with long trips at low speed. For example, by dirt road“Where you can’t really accelerate.” The engine load is high and engine oil does not come abundantly. Engine on idling(XX) is poorly washed with oil, as a result of which, again, rings can lie, deposits can accumulate on the walls of the engine. The owner of the car at this time calmly looks at the odometer, where the cherished 15,000 km have not yet arrived and convinces himself that "everything is fine!".
- Operation in conditions of extremely high or extremely low ambient temperatures. When operating the vehicle in summer heat the engine is exposed to high temperatures, the oil heats up, and therefore the oil film becomes thinner, the coefficient of friction increases, and the oil film on the surface of the friction pairs may break. If we add to this the towing of a trailer, and even high speeds along the highway, we get a very tough regime. Remember yourself, on a trip to the South, during the holidays - we will load the whole family, pick up a trailer and "spear" on high speeds on the highway - it would be faster to get to the sea / or back home. This is just the case! Heat air also accelerates the oxidative processes in the engine and affects the development of the engine oil resource. Operating the engine at low temperatures also affects the life of the engine oil! Attempts to start the engine in cold weather often result in the engine not starting while fuel was being supplied. Settling in the crankcase, the fuel enters the engine oil and dilutes it. Subsequently, the fuel, of course, burns out and evaporates, but the oil has already been spoiled and, in a miraculous way, cannot be restored to a fresh state. In winter, we often warm up the engine before we start driving, but long periods of idling (XX) are again not good for engine oil. The engine is running - but the car does not “wind up” the mileage, meanwhile we change the oil according to the mileage!
- Towing a trailer, transporting heavy loads in the trunk, operating a car in mountainous areas. It's not a secret, in heavy-loaded equipment, oil depletes its resource much faster. If you uproot stumps in the country with your car, you will wear out the motor ten times faster than during normal operation. The more the engine is loaded, the faster the oil wears out in it. The operation of a car in mountainous areas, where there are frequent ups and downs, also seriously affects the reduction of engine oil life.
It is generally accepted that in Russia there are difficult operating conditions! On our resource, the site has repeatedly seen examples and confirmations that the Japanese in Japan, Europeans in Europe, Americans in the USA consider their “greenhouse” operating conditions to be difficult and reduce shift intervals by half! Then what are the operating conditions we have in Russia?
On-board computer as a guideline for oil change dates.
In modern cars on-board computer based on the received data, it itself signals when to change the oil. Service interval (mileage until the next Maintenance) is calculated from the distance traveled over a certain period of time, the fuel consumed and the change in temperature over the same period. Data is collected from various sensors in the car, the turnover sensor crankshaft, oil temperature gauge, distance traveled from the tachometer, fuel consumption, etc. Based on this data, the control unit calculates the remaining mileage until maintenance and signals the required service interval on the display.
Fig 2. An example of how it is calculated service interval in Skoda cars:
Fig 3. Depending on the received data, the on-board computer may issue various options:
But you need to understand that the on-board computer is just a machine, which does not take into account many factors, and was created by its manufacturer, which cannot take into account all factors either! Therefore, you will not make it worse if you change the oil more often - you will only make it better!
So after all, what engine oil change interval should I choose?
Let's highlight the main points when choosing an engine oil change interval.
- Look at the manufacturer's manual. It is the manual, and not translations of third-party Russian publications, taken from nowhere! In the manual we find a plate with shift intervals, and the lines "under severe operating conditions, we recommend halving the shift interval." Sometimes there is nothing in the manual about mileage. We are looking for official technical papers, usually they English language. Be sure to follow the official recommendations of the manufacturer of your car!
- We define our operating conditions. In most cases, if you live in Russia, you have a difficult operating conditions! But there are exceptions! For example: You live in a quiet, provincial town, where there is no traffic jams. The climate is temperate, the temperature in summer is not more than + 30C, in winter there are no frosts. The car is operated daily and travels at least 20-30 km after starting. The car does not idle XX for 20-30 minutes (you do not use the auto-start function of your alarm - yes, this is also harmful!). You fill up the fuel at one gas station, you know for sure that it is of good cleaning, with a low sulfur content. Fuel is supplied directly from the refinery, all documents are in order (and in general this is your relative's gas station 🙂). The terrain is flat, not dusty, the roads are paved (because the president recently came to your city 🙂). In these cases, you can not shorten the shift interval and consider that you have normal operating conditions! In all other cases, consider your operating conditions as severe!
- What oil are you using? If you pour mineral oil, it lives less - you need to make discounts for this. The same applies to "synthetic" oils based on hydrocracking (VHVI, Group III). If you pour real PAO / Ester synthetics - they live longer mineral oils and hydrocracking - but do not flatter yourself! In engine oil, in addition to base oil, there is a package of additives that work out, regardless of whether they are dissolved in synthetics or in mineral water. If you have severe operating conditions, you need to pay attention to the characteristics of engine oil. On oils with low alkaline number(for example, TBN = 5-6), as well as on poor high-sulfur fuel - driving with long shift intervals is not advisable!
- What engine do you have? If the engine of your car is equipped with a turbine, the oil wears out its resource faster than in a simple atmospheric engine. There are manufacturers who recommend in difficult conditions, for turbo engines, the change period is 2500 km!
Example 1: Let's try to determine the shift interval for toyota camry 2008 release.
We find Toyota white paper:, below in small text is written "In severe operating conditions, reduce the shift interval by two." We divide 14000/2=7000km. Final Choice: Change interval 7000 km.
What do motor oil manufacturers say?
Motor oil manufacturers almost always stand in solidarity with automakers when it comes to change intervals. Almost everywhere it says "Consult your vehicle owner's manual." But there are expert answers in the form of advice. In their responses, motor oil manufacturers almost always rely on the recommendations of automakers!
In conclusion of the article, I would like to quote FAQ, a very famous and popular in the West, motor oil manufacturer - Valvoline.
Question: Do I need to shorten my oil change interval to 3000 miles (about 5000km)?
Answer: Valvoline recommends changing the oil every 3000 miles (about 5000km). The majority of motorists (more than 80% of drivers, according to a study in California) operate the car in severe conditions (start-stop mode, short distance driving, towing, very high or very low temperatures air, etc.) Automakers recommend shorter shift intervals in heavy duty applications, most recommending 3,750 miles or less, with 3,000 miles (about 5,000km) being the most common recommendation. engine oil and oil filters have a shorter service life in severe operating conditions, due to an increase in the amount of pollution. Thus, changing the oil and filter every 3,000 miles (about 5,000 km) is the best way to ensure a healthy engine.
You can subscribe to every word! It is the frequent intervals for changing engine oil - 5000 km, that will protect you from the accumulation of deposits in the engine, from the negative effects of poor quality fuel, from harsh vehicle operating modes, etc. Shortened engine oil change intervals, one of the most effective ways keep the engine excellent condition! With change intervals of 5000 km, the car's engine will serve faithfully for many years!
WATERPROOFING OF BALCONIES, TERRACES
Open balconies and terraces, walkways, galleries, loggias, roofs underground parking, outdoor areas with seating are constantly exposed to weather conditions. Especially if these zones are intended for the mass movement of people, for example, in mall or in a stadium, they should perform not only a decorative function, but also provide waterproofing. MARISIL SYSTEM offers systems liquid waterproofing based on polyurethane, providing long-term long-term protection of terraces and decks used in public places.
We suggest using the MARISIL system of polymeric waterproofing materials for waterproofing a balcony or terrace.
MARISIL SYSTEM is a technologically advanced, high-quality waterproofing system that is easy to apply, fully certified, and provides guaranteed long-term results. The system can be used to cover balconies/terraces as well as for repairs and renovations. Products MARISIL SYSTEM includes various systems depending on the characteristics of the surfaces to be applied.
Advantages of polymer waterproofingMARISIL SYSTEM balconies, terraces
- Ease of application (roller or airless spray)
- When applied, it forms a continuous membrane without joints
- Resistant to water, heat and frost
- Crack bridging
- Excellent thermal stability, weather resistance, UV resistance
- Remains flexible at temperatures from -40 to +90 °C
- Various decorative options
- When applied, forms a continuous membrane that adapts to any shape
- Sealing of seams and elements
- Minimum additional weight to the substrate
TECHNOLOGY
Waterproofing of balconies, terraces with severe operating conditions
TYPE OF BASE
Concrete, cement-sand screed
- Foundation preparation
Clean all cracks, seams and joints from contamination. Using a gun or spatula, fill the irregularities with MARIFLEX PU 30 sealants. Consumption Calculated individually
- Padding
Apply MARISEAL 710 primer with a roller, brush or airless sprayer. Consumption 0.10-0.2 kg/m2
- Installation of a waterproofing membrane
Apply MARISIL 250 / MARISIL 260 in 1 or 2 coats with a roller, brush or airless sprayer. On a dry layer of MARISIL 250 / MARISIL 260, we evenly lay the geotextile fabric MARISIL FABRICK and apply a layer of MARISIL 250 / MARISIL 260 on it. Consumption 1.6 - 1.7 kg/m2
- Applying the final layer
Apply MARISIL 250 / MARISIL 260 in 1 or 2 coats with a roller, brush or airless sprayer. Sprinkle the wet finishing coat of MARISIL 250 / MARISIL 260 evenly with dry quartz sand or silica and leave until completely dry. Consumption 1.6 - 1.7 kg/m2
Apply MARISIL 420 in 1 or 2 coats with a roller, brush or airless sprayer. Consumption: 0.2 - 0.4 kg/m2
PRICE OF 1 SQ.M OF POLYMER WATERPROOFING OF THE TERRACE BALCONY
2 311 rub / sq.m. (the price is indicated, based on the average consumption of materials)
Buy a complex polymer waterproofing for a balcony, terraceat the best price from a warehouse in Moscow and delivery to any city in Russia: Moscow, St. Petersburg, Yekaterinburg, Nizhny Novgorod, Kazan, Samara, Chelyabinsk, Omsk, Rostov-on-Don, Ufa, Perm, Volgograd, Voronezh, Saratov, Tolyatti, Tyumen, Izhevsk, Barnaul, Ulyanovsk, Vladivostok, Khabarovsk, Yaroslavl, Makhachkala, Orenburg, Tomsk, Kemerovo, Astrakhan , Ryazan, Naberezhnye Chelny, Penza, Lipetsk, Tula, Kirov, Cheboksary, Kaliningrad, Kursk, Ulan-Ude, Stavropol, Tver, Ivanovo, Bryansk, Sochi, Belgorod, Arkhangelsk, Vladimir, Sevastopol, Chita, Kaluga, Smolensk, Volzhsky, Kurgan, Orel, Cherepovets, Vologda, Vladikavkaz, Saransk, Murmansk, Tambov, Grozny, Kostroma, Novosibirsk, Krasnoyarsk, Ryazan, Minsk.
WATERPROOFING MATERIALS MARISIL-SYSTEM
FOR WATERPROOFINGBALCONIES, TERRACES
HEAVY DUTY
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materials |
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MARISIL 250 |
MARISEAL 250 is a high quality, durable, flexible, one-component, cold-set, liquid-applied polyurethane membrane used for long-term roof waterproofing. MARISEAL 250 is formulated with pure elastomeric hydrophobic polyurethane resins for roof waterproofing when applied with polyurethane mortars. This method provides excellent resistance to mechanical, chemical, thermal, UV and natural elements. MARISEAL 250 cures by reacting with moisture in the air and the ground. | |
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MARISIL 250 FLASH |
MARISEAL 250 FLASH is a high quality, semi-thixotropic, durable, flexible, one-component, cold-set, liquid-applied polyurethane membrane used for long-term waterproofing. MARISEAL 250 FLASH is formulated with pure elastomeric hydrophobic polyurethane resins for roof waterproofing. This system provides the same excellent resistance to mechanical, chemical, thermal, UV and natural elements as MARISEAL 250. MARISEAL 250 FLASH cures by reaction with air and ground moisture and is also semi-thixotropic for use on slopes. surfaces. | |
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MARISIL 260 |
MARISEAL 260 is a durable, flexible, one-component, cold-set, cold-applied polyurethane membrane used for long-term waterproofing. Like MARISEAL 250 and 250 FLASH, MARISEAL 260 is formulated with pure elastomeric hydrophobic polyurethane resins for roof waterproofing when applied with polyurethane mortars. MARISEAL 260 cures by reacting with air and ground moisture to provide excellent roof waterproofing that is resistant to mechanical, chemical, thermal and environmental wear for use on sloped and flat surfaces. MARISEAL 260 requires a suitable top coat. | |
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MARISIL 420 |
MARISEAL 420 is pigmented, hardwearing, semi-rigid, UV resistant, weather resistant, color retention long period time, one-component aliphatic polyurethane membrane applied in a liquid cold form with cold curing to form a top coat and protect exposed waterproofing coatings exposed to severe weather conditions. MARISEAL420 cures by chemical reaction with moisture in the air and the ground. | |
Our company can offer you cars of various carrying capacity, which allows you to choose the option of loading that you need.
- Delivery of materials in Moscow and Moscow Region, when ordering a minimum lot:
- Delivery of materials to other regions of Russia (with the exception of Moscow and the Moscow region), when ordering a minimum lot:
- Delivery of materials to the CIS countries, when ordering a minimum lot:
Maximum delivery rate in Moscow
| № | Carrying capacity (tons) | Volume (cubic meters) | Cost, rub.) |
| 1 | up to 1.5 | 7-10 | 2 000 |
| 2 | 1,5 | 7-10 | 3 000 |
| 3 | 3 | 15-17 | 4 000 |
| 4 | 5 | 15-20 | 7 000 |
| 5 | 10 | 30-40 | 8 000 |
| 6 | 20 | 75-96 | 10 000 |
Maximum delivery rate outside the Moscow Ring Road in the Moscow region
| № | Carrying capacity (tons) | Volume (cubic meters) | Cost per 1 km (rub.) |
| 1 | up to 1.5 | 7-10 | 28 |
| 2 | 1,5 | 7-10 | 30 |
| 3 | 3 | 15-17 | 32 |
| 4 | 5 | 15-20 | 35 |
| 5 | 10 | 30-40 | 40 |
| 6 | 20 | 75-96 | 50 |
Additionally:
Entrance to the interior of the Third Ring Road - 1500 rubles. for the car.
Entrance inside Garden Ring- 2500 rub. for the car.
We can offer you the option of delivery by manipulator. Load capacity of the manipulator is 15 tons. The use of a manipulator greatly simplifies the unloading of products at your facility, helps to get rid of the search for unloading equipment, and also significantly saves on unloading.
The price of unloading 1 pallet is 250 rubles.
Delivery of regional orders is carried out before transport company chosen by the Customer within the city of Moscow or the Moscow region at the above rates, or by transport of our partners in agreement with your manager to the facility in your region.
Transport companies with which we work for the delivery of materials in Russia:
- Business Line
- PEC
Delivery of orders to the CIS countries is carried out to the transport company chosen by the Customer within Moscow or the Moscow region at the above rates, or by the transport of our partners in agreement with your manager to the facility in your region.
When delivering to the CIS countries, we produce the necessary customs clearance, which is issued by our partner LLC "Corporation VED-CENTER"
The success of each shipment depends on competent planning, so for each cargo we select the most suitable transport, optimal route and delivery cost.
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I am constantly engaged in the type of activity of finishing houses with artificial stone. And I always face the same problem - finding necessary materials. Fortunately, I found your company and ordered everything I needed: SOREL artificial decorative stone, QUICK-MIX FX 600 stone glue, QUICK-MIX RSS stone grout. All excellent quality, there are samples for review in the office, consultants are well versed in the materials and are always ready to help. I was also very pleased with the discount for a large purchase. Everything needed was delivered on the same day. Paid by card. Very convenient, fast and high quality. I recommend to all.
Maxim Shcherbakov
Recently started finishing the house with natural stone. I had the main material, I had to buy glue for natural stone HAGAst KAS-555. I have worked with him before and have always been happy with the results. But I couldn't find it anywhere at a reasonable price. Or it was out of stock. I am very glad that I contacted you. I called back, clarified whether there was glue in stock, whether there was a delivery. The managers answered all the questions and said that the material was in stock in the right quantity, after which they delivered it directly to me. Thank you for the high quality material and first class service. From now on, I will always turn to you.
Igor Gorelov
I am a foreman and our team of builders are constantly laying marble tiles on the walls and floor. For work we use quick-mix MK 900 marble glue (white). For a long time worked with one supplier, but in the end he stopped working in the city and it was necessary to look for an alternative. Found you and do not regret. At first they took some material purely for testing, the quality was on the level. Further already ordered for the entire object. The glue is durable, easy to work with and dries quickly - exactly what we need. So we will be applying for new batches soon. Definitely pleased with the fast delivery and quality service. Thank you!
Semyon Lukyanenko
I myself am engaged in the construction of houses, so I know quite well when it comes to choosing materials. And not all of what sellers offer today really deserves attention. This time I needed to buy glue for polystyrene foam, facade glass meshes and dowels. I was looking for something suitable for a long time until I came across your site. Everything you need is there, the price is good, the quality of service is excellent. Especially the speed of delivery. I was advised on the options for choosing the material, calculated the right amount, delivered right on time, as indicated in the contract.
Ivan Artamonov
Our company is engaged in the installation of industrial floors in Moscow (for increased loads). Accordingly, the quality of the materials we use must always be at highest level. We ordered especially durable industrial floors Reapol 20 from you and did not regret our choice. The material itself performs the functions of a leveling screed and top coat, is very easy to use and has the highest strength. Thank you for clearly calculating the right amount of material, delivering it strictly on time and giving a good discount for a large amount of goods in the order.
Vitaly Zgursky
We are engaged in laying the floor in large industrial premises. For us, quality always comes first. end result. This means that the materials used must be first-class. You ordered concrete floor hardener Reamiks-M - a novelty on the market that completely replaces the topping. The material is more convenient to use and perfectly increases the strength of concrete. Nice to work with you. Specialists are always ready to consult on all issues, give advice and quickly deliver to the place. Good job for reasonable money. We cooperate not for the last time.
Viktor Semagin
I am in the process of laying brick walls. It was necessary to buy mortar for Quick-mix LHM bricks. Searched, I confess, for quite a long time. And at first I didn’t even know for sure whether I needed this solution. Good to be in your office. Here they showed samples, advised what is best to choose and made a miscalculation of the required quantity. After payment, delivered the same day. The material provided is inexpensive and of high quality. Great for laying bricks on your own, even without special building skills. Yes, I enjoyed working with you. You are real pros.
Dmitry Khorolsky
Our small company is engaged in the insulation of facades in high-rise buildings. You bought glue for polystyrene foam, facade mineral plaster bark beetle. all materials highest quality, and the price is more than democratic, which is definitely pleasing. We have been working for the second year and mainly try to find inexpensive, but high-quality material. Just happened to find one here. They called, ordered, took advantage of the delivery to our warehouse. Everything is very convenient. Delivery is generally inexpensive, and deliveries are strictly on schedule. Great job! We will cooperate.
Segey Maksimenko
The service interval (frequency of oil and filter changes) is in the car's service book. What does this information give us? In fact, these are just manufacturer recommendations.
At the same time, the service interval is usually calculated in kilometers and months (for example, in the form of a requirement to change the oil at least once a year or every 15 thousand kilometers). All other factors are taken into account by default, as described above.
How does the manufacturer calculate the recommended oil change interval? Time does not stand still, and it is absolutely obvious that the era of "eternal" cars is far behind. It has long been unprofitable for automakers to produce cars that do not break down for decades, because they need to somehow maintain their developed service infrastructures, as well as encourage consumers to buy new cars.
Therefore, the car manufacturer, when calculating the recommended oil change interval, oddly enough, does not care at all about the longevity of the engine in the long term. For the automaker, it is important how the engine will perform during the factory warranty period, and it is absolutely not essential what happens to the engine next. Moreover, it is just beneficial for the manufacturer that after the end warranty period the owner of the car visited the company service more often or quickly thought about buying a new car.
Extended oil change interval (longlife)
Some modern motor oils are positioned as motor oils with an extended service interval (longlife). Many motorists really want to believe advertising, and therefore they buy just such oil, believing that they save money and at the same time protect the engine.
In fact, it is possible to change the oil at an extended service interval only if three “ifs” are fulfilled at once:
1. if the car manufacturer has provided for a replacement interval longlife oils for this model and for this engine;
2. if the car manufacturer has approved (certified) this particular engine oil for use in this particular engine according to the longlife system;
3. if the car is used exactly in such modes and conditions, which are determined by the car manufacturer, as acceptable for the longlife mode.
If everything seems to be clear with the first two “ifs”, then with the third one it’s a little more complicated - car manufacturers rarely describe in which mode the use of a particular brand of car is, in their opinion, optimal. However, oil change intervals and other consumables are calculated with these parameters in mind.
Here, apparently, it is necessary to include logic and analyze target audience consumers for whom your car was designed during development, as well as the region in which it was originally sold in bulk. Well, evaluate external factors affecting the real need to change the oil ahead of schedule. If, for example, the streets in your city are not washed with water every morning (as is the case in Western Europe), apparently, longlife is not your choice. It is about the factors that reduce the interval after-sales service, next article.
What factors affect the engine oil change interval?
Of the main - this is the season, mode of operation, as well as the quality of fuel and consumables. Some car and motor oil manufacturers give various recommendations how often to change the engine oil, depending on the operating conditions. In particular, there is such a definition as “difficult conditions” for operating a car, under which engine oil must be changed more often.
What is "hard conditions" of operation?
Oddly enough, this is not at all what many motorists imagine. Without going into the physics and chemistry of the processes that occur in the engine, we can single out the main operating modes that are “heavy” for the engine and significantly reduce the life of the engine oil. So the "heavy" conditions are:
1. Irregular use of the vehicle or significant interruptions in operation. Remember the popular proverb - "the car must drive every day!"? That's the way it is. An engine that starts once a week or, for example, does not start at all in winter requires much more attention, more frequent replacement engine oil and most likely will live less than the same, but working every day.
That's right, and this is due to the condensate that forms inside the engine during long periods of inactivity. Mixing with products of combustion of gasoline or diesel fuel, this condensate is a fairly effective acid that corrodes the motor from the inside. So the stories of salesmen from the car market about the fact that the grandfather drove the supermarket once a week are actually very dubious advertising in terms of the condition of the car. But since in 99% of cases this is still not true, covering up a shamelessly twisted mileage, you should not worry too much about this.
2. Regular trips for short distances. How many kilometers from your home to work? Have you ever paid attention to what part of the way you drive in the morning (and, accordingly, in the evening) on an engine that is not warmed up to operating temperature? In other words, are you sure that your engine has time to fully warm up during the trip to work? This is again about condensate with all the consequences. Especially true in winter.
3. Traffic jams and "start-stop" mode. If you remember the school kinematics course, you should understand that the maximum load on the engine is achieved when starting off. It is at these moments that the oil heats up more and loses its properties most intensively.
4. Riding in hilly terrain, towing a trailer, and constant riding on a loaded vehicle. Again, an increased load on the engine, which leads to premature oxidation and thickening of the engine oil.
5. Vehicle operation in dusty or polluted air. Have you ever noticed that in any civilized country shoes are as clean in the evening as they are in the morning? Do you think there is less dust? Probably yes, but the main thing is that the streets are washed there! Regularly, at any time of the year. And it is for these clean streets, where there is very little dust and dirt, that European automakers calculate the time interval during which engine oil simply becomes contaminated and completely loses its properties. It is for these streets that air filters are developed that you change along with engine oil. And that is why in service books to foreign cars it is often written that air filter changes every 60 thousand km!
6. Poor fuel quality. Well, everything seems to be clear here - everything that does not burn out in the cylinders settles in the engine oil and significantly reduces its efficiency. Therefore, it should be understood that recommendations for engine oil change intervals and consumables for European cars are written based on European fuel quality. What the tanker Fedya tops up in the tank, who has just pumped out a canister of gasoline for his Zhiguli - to the Germans in nightmare will not dream. Yes, and the factory quality of the fuel at the output is very different in Europe and here - this must be recognized.
7. Jamming and idling of the engine. During idle time with the engine running, the efficiency of the cooling system drops significantly, the oil heats up.
Thus, it is obvious that the ideal operating conditions for a car are regular long trips V empty car with moderate speeds on clean European roads, moreover, on European fuel. If your conditions differ from this - you need to adjust the recommendations of the car manufacturer regarding how often you need to change the engine oil. Of course, in the direction of reduction.
Vacuum, or as it is also called,
Express oil change.
In general, the topic deserves a separate article, but briefly we can say this: vacuum replacement much more used oil remains in the engine than if drained in the traditional way. Plus, sediment collects at the bottom of the oil pan during engine operation, which is not removed by vacuum. So, firstly, it is better to alternate such an oil change with a traditional one, and, secondly, after an express oil change, the next time you need to service the car earlier than usual.
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