Replacement of spark plugs and carbon deposition of 20 models 525 standard shafts 36,000 kilometers
AbrahamJim 
5 Let’s briefly introduce the 36,000 vehicles:
1. The engine is a B48TU, and the original spark plug is removed to look like the champion OE259.
2. All oil is 5W-30 replaced at point 4S.
3. 5.25 liters of oil were added at the first insurance of 10,000 kilometers, and at the time of 20,000 and 30,000 kilometers, it became 5.75 liters. However, the only time when 5.25 liters were added for the first insurance, there was a warning that the oil had reached its minimum level at 19,000 kilometers (there was a suspicion of burning oil from the beginning). Even if 5.75 liters of oil were added later, the oil test dropped by 1-2 compartments when the maintenance cycle of 10,000 kilometers was reached, so about 1.2 liters of oil would be burned in 10,000 kilometers.
4. When the price was 28,000, it was warned that there was too little coolant, but no problem has occurred since the filling. But when I was replacing the spark plug today, the master added some for me after checking it. I didn’t look at the actual liquid level.
5. The official said that the spark plug would be replaced every 20,000 kilometers. Later, based on online video analysis and some actual situations shared with riders, it was decided to replace it with 30,000 yuan. However, at 30,000 kilometers, the vehicle was still accelerating vigorously, and there were no other symptoms such as jitter or increased fuel consumption during idle and other working conditions. It was decided to observe again. The warranty is about to be issued in November, and the 6500 voucher given by ID7 last time was also about to be used up. I took advantage of this weekend to replace the spark plug and check the condition in the cylinder to see if there was serious engine oil burning. and carbon deposits.
1. The engine is a B48TU, and the original spark plug is removed to look like the champion OE259.
2. All oil is 5W-30 replaced at point 4S.
3. 5.25 liters of oil were added at the first insurance of 10,000 kilometers, and at the time of 20,000 and 30,000 kilometers, it became 5.75 liters. However, the only time when 5.25 liters were added for the first insurance, there was a warning that the oil had reached its minimum level at 19,000 kilometers (there was a suspicion of burning oil from the beginning). Even if 5.75 liters of oil were added later, the oil test dropped by 1-2 compartments when the maintenance cycle of 10,000 kilometers was reached, so about 1.2 liters of oil would be burned in 10,000 kilometers.
4. When the price was 28,000, it was warned that there was too little coolant, but no problem has occurred since the filling. But when I was replacing the spark plug today, the master added some for me after checking it. I didn’t look at the actual liquid level.
5. The official said that the spark plug would be replaced every 20,000 kilometers. Later, based on online video analysis and some actual situations shared with riders, it was decided to replace it with 30,000 yuan. However, at 30,000 kilometers, the vehicle was still accelerating vigorously, and there were no other symptoms such as jitter or increased fuel consumption during idle and other working conditions. It was decided to observe again. The warranty is about to be issued in November, and the 6500 voucher given by ID7 last time was also about to be used up. I took advantage of this weekend to replace the spark plug and check the condition in the cylinder to see if there was serious engine oil burning. and carbon deposits.
PS: Personally, I feel that unless it is hard driving with frequent floor oil, 30,000 kilometers will be more than enough to change spark plugs, and even 40,000 kilometers will be fine.
Next are some photos of replacing the spark plug and accumulating carbon in the cylinder.
Replace it with a brand new spark plug, this time it is NGK’s, not the champion who continues to use it from the factory. There is no difference in the actual driving experience after the replacement.
The replaced champion OE259 spark plugs are cylinders 1-4 from left to right. It can be seen that the spark plug heads of cylinders 1 and 2 are very dirty and have many oil stains, which is consistent with the situation reported online. Judging from the gap, if it weren’t for oil stains, it would be no problem to use 40,000 companies.
Head details of factory spark plug
You can still vaguely see the carbon deposit inside cylinder 1. You can still vaguely see the metal cylinder bottom. When preparing for the Double Eleven, you can clean the entire bottle of fuel treasure a little.
The situation in cylinder 2 is more serious. There are several large carbon deposits, but the thickness is good, and the metal cylinder bottom can still be seen sporadically.
Compared with cylinders 1 and 2 in front, cylinder 3 can obviously feel much cleaner, and the carbon deposits are scattered and small pieces. It can also be seen from this aspect that carbon deposits in cylinders 1 and 2 are caused by oil leakage.
Combined with the 10,000 kilometers I mentioned above, about 1.2 liters of engine oil are burned. But when I asked the 4S shop employees today, the standard they gave was that only 0.8L of oil consumption per 1000 kilometers is a problem of burning oil. Please take a look.
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