Yesterday a friend consulted me, because I went back to my hometown in advance, his car was originally added No. 92 oil, when I went to refuel, people directly added No. 95 oil to him, so he asked me what the problem was, so today Meow Brother gave everyone a chat about long-term plus No. 92 oil, if you add No. 95 oil, what kind of feeling will you have.
For example, my car, usually add No. 92 gasoline, but sometimes when I encounter refueling, the gas station is unloading oil, and the oil of No. 92 cannot be added, so I am too lazy to wait, I directly add No. 95 oil, so what will be the problem, what will be the feeling. First usually, if you add No. 92 oil for a long time, and suddenly change the No. 95 oil, there is actually no difference at the beginning, but after a while, or after a period of time, you will find that the power is stronger than before.
Second, if you have the habit of mileage, you will find that after adding No. 95 oil, it seems to be more resistant to burning than No. 92 oil, why does this feeling occur. First of all, on most cars, if it is written to add No. 92 oil, then the fuel tank cover is basically written on the gasoline of No. 92 and above, that is, it can add No. 92 oil, but also can add No. 95, No. 98 oil.
It's just that the oil in the back is a little more expensive, and it is not willing to add it, and the oil of No. 92 is the lowest grade oil of its engine. The second question is why after the addition, obviously feel powerful and run far, in fact, it depends on the compression ratio of your car, like my old car, because the compression ratio is not too high, so my car plus 92, compared with the addition of 95, the feeling is very weak.
But now in recent years, the new car, due to its sensors and the accuracy of the car computer design is getting higher and higher, so after changing from No. 92 oil to No. 95 oil, it detects that the ignition value of the oil changes, and it will make a correction of the ignition time, so that it can just put the No. 95 oil to the best ignition time and mechanism.
So you may have used 92 oil before, the ignition angle is slightly ahead, but just at the critical point, after changing to 95 oil, the ignition angle can be at an appropriate time, so that the whole oil added in, the combustion completeness will be much better, so you will feel that your car runs more powerfully, also because the oil burns more fully, so it will also feel, the same add a box of oil, the mileage of the car will be slightly farther, so from the oil of 92 to the oil of 95, In fact, it has a lot to do with the compression of the car.
Especially now there are some cars, the engine still belongs to the kind of variable compression ratio, that kind of engine in fact, it is the use and adjustment of the oil level, than the ordinary immutable compressor, its adaptability will be better, so it will feel more obvious, if your car is written to add 92 oil, but want to experience the feeling of 95 oil, then the next time you refuel, you can change to 95 oil, after adding you experience, your power feeling is not a significant improvement, Then remember that the same full tank of fuel, the battery life is not significantly extended.
If the endurance is extended, the power is improved, and then compare with the difference between the oil of No. 92 and No. 95, calculate the oil price per kilometer, then you can also try to add No. 95 oil later, because its cost per kilometer is finally calculated to be exactly the same, so that the power experience will be better when driving, but if your car is an ordinary self-priming engine, the compression ratio is not high, then it is recommended that you, there is no need to change from No. 92 to No. 95.
Like my plus 95, it is completely a waste, although there is no damage to the car, but more than the fuel, and did not get the due experience, this is not cost-effective. Finally, we should remember that if your car is marked with no. 95 and above oil, this can not add no. 92 oil, occasionally emergency plus a little problem, but can not be added for a long time, because the engine is adapted to no. 95 oil, with no. 92 oil will cause your engine ignition angle has been advanced.
So that the oil in the compression process, has not yet reached the compression ratio that should be, it has been ignited and burned, so it will cause the combustion to be very insufficient, and then the engine will produce a knock, so that the driving experience of the entire car, all aspects of the power will become very poor, and the car will appear shock sensor will give you an alarm, some cars If the shock absorption is not good, you can feel the knock of the engine, if the fuel label is lowered privately for a long time, there is indeed a slight damage to the car.