At present, most trucks basically use diesel engines with high thermal efficiency and high power. Because trucks will encounter various road conditions when transporting goods, coupled with the large transportation volume, the maintenance of their engines is very important.
Robert Sikorsky, a famous American engineer, listed five main causes of engine wear in his book forever driving.
After the fuel is burned in the engine combustion chamber, a large number of harmful substances will be produced. Generally speaking, every 100 gallons of gasoline produces 1-5 pounds of nitrogen and sulfuric acid. These substances will not only cause corrosion to the cylinder, but also rush into the engine through the three piston rings (upper ring, middle ring and lower ring), causing metal corrosion to the main components of the engine, such as cam and crankshaft. This corrosion cannot be eliminated only by the use of lubricating oil.
After the engine is shut down, it will cool from high temperature to low temperature. This temperature change process will produce water-cooled condensate, and even ponding in the engine. This will cause serious metal corrosion to the engine, especially when the engine is restarted in a short distance and the engine temperature is too late to evaporate water vapor. This kind of wear cannot be solved by lubricating oil.
The engine needs to inhale air during combustion, and even the best air filtration device is difficult to prevent dust from being sucked into the engine with the air. Strong wear is caused by inhaled dust, which cannot be completely eliminated by lubricating oil. Especially in China’s dry, rainless and windy areas, this strong wear is more prominent.
GM’s research shows that when the engine stops running for 4 hours, all the lubricating oil on the friction interface will return to the lubricating oil tank. At this time, start the engine. Since the oil pump does not have enough time to send the lubricating oil pump to all lubricating parts, the dry friction of periodic loss of lubrication will occur in a short time, resulting in serious abnormal and strong wear of the engine. This strong wear cannot be solved by lubricating oil. (according to other relevant data, this strong wear accounts for more than 70% of the total wear of the engine).
Wear caused by normal operation of the engine. After clarifying the causes of engine wear, we will also know the role of lubricating oil in reducing engine wear. At the same time, the importance of using anti-wear protection products to prolong the service life and maintain the engine is clarified.
In addition, although additives such as anti-wear agent, viscosity index improver, detergent dispersant, rust inhibitor and antioxidant exist more or less in all high-efficiency lubricants, it should be emphasized that the above additives are not equivalent to professional automobile maintenance products. In the actual use process, people often want to obtain maintenance products with excellent comprehensive performance, which requires the selection of a variety of additives, the use of composite technology and configuration process to produce composite products with wide applicability.
It is not easy to develop a good compound formula, and the use of additives mainly depends on the experimental results. Secondly, there is a synergistic effect between different additives, which may be positive or negative. Therefore, in order to develop good automobile maintenance products, we must fully understand the performance of various basic additives, and a large number of laboratory and road vehicle experiments are needed. This is why the professional automobile maintenance products compounded with basic additives are very different from the basic additives only used as various oil additives.
In case of oil leakage, water leakage and air leakage of the engine, it will cause problems such as increased fuel consumption, accelerated wear of parts, power decline and so on. To solve the three leakage problem, let’s first look at the causes of the three leakage problem.
Correct maintenance can effectively prolong the service life of diesel engine, reduce failure rate and reduce cost. In order to improve your operation efficiency and reduce costs, please carefully understand the correct use and maintenance. Special fittings and oil shall be used.
Oil changes are often overlooked, but to be honest, they are very valuable. Fresh oil helps to lubricate the moving parts of the engine, absorb heat and reduce carbon deposition. To learn more about which oil is suitable for your truck’s diesel engine and the oil change frequency of your truck, please check your owner’s manual. You can also check the dipstick every few weeks. If you don’t have enough oil, top it up.
Replace the fuel filter
Unlike gasoline, diesel fuel is easily polluted by water. For this reason, the diesel truck includes a water separator, which can be found near the fuel filter. The water separator is usually self-cleaning, but you need to let it go at regular intervals to keep the diesel clean. Open the drain valve and drain the water. That’s it!
For truck drivers, working outside all year round will inevitably encounter the problems of the vehicles they drive. Therefore, it is very necessary to understand some basic engine maintenance knowledge. More detailed common faults and maintenance methods of the truck engine will be shared with you one after another. Please keep an eye on our website.
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