Long-term use of oil will be metamorphic less than lubrication, cleaning and other effects, the oil stored in the oil tank, under normal circumstances 5 years without deterioration, but into the engine, six months or a year will be deteriorated. Why? The reason is that the engine running high temperature, high pressure these harsh operating environment, so we want to clear the oil replacement cycle, you have to figure out what are the factors that will have an impact on the deterioration rate of oil.
01
Engine operating environment is poor
The first is the operation of the engine, oil loaded into the engine, if the engine never start, then it's about the same cycle and open the seal of the oil, 5 years can not, but certainly no problem for 3 years, only the engine is running, will Resulting in high temperature, high pressure and friction, then the cumulative engine operation time will become an important indicator of the oil change cycle.
Followed by the engine operating conditions, idling and 6000 rpm high-speed operation, the loss of oil is clearly not the same, not to mention the high temperature and pressure, the friction frequency and intensity, the difference was geometric multiples, that is Said that the speed of oil damage is very variable compared to the often gentle driving method compared to the regular violent driving method.
02
Turbocharging is worse than naturally aspirated
To give an extreme example, the racing engine oil, the replacement cycle will certainly be much shorter than the family car, because the high degree of strength of the engine is more high temperature, high pressure, shear force is also stronger, the damage to the oil naturally larger, This is why high-strength engine oil level higher requirements of the main reason, then the corresponding ordinary civilian vehicles, the engine to enhance the degree of difference between the most typical turbocharged engine and naturally aspirated engine, the former is often the degree of reinforcement The latter 1.3 times to 1.5 times.
Accordingly, different turbocharged engine intensification differences are also much larger than the different naturally aspirated engines, which is what we often say high-power version, low-power version, they are also for the degree of damage to the oil are also different .
In addition, in theory, such as ambient temperature, humidity, air quality, gasoline quality, etc., can also affect the rate of deterioration of oil, but compared to the above three of them Is the secondary cause.Of course, in addition to the external environment, the oil itself has an essential impact on the oil change cycle, this brand, the level of difference is not large, depending on the type of base oil, generally speaking, the use of fully synthetic engine oil The longest cycle of the engine oil change, followed by semi-synthetic mineral oil the shortest.
