Miss A knows nothing about cars. She will often receive the maintenance messages from the distributors. Her car has only run for 800 miles, but the engine oil and filter have been replaced for 3 times. It’s even less than the maintenance interval- 300 miles.

Reminder: Car maintenance cycle means the mileage or time of the maintenance interval. Frequent maintenance is not a bad thing, it can more effectively protect the performance of vehicles, but it is not necessary actually. Interval mileage for all types of maintenance operations enables the car to maintain a good technical condition, saving maintenance and repair costs.

Mr. A assumed that the higher grade of gasoline is the better one. He has been using 98 gasoline for his loving car for 2 years.

Reminder: Generally car owners know that a long period of time using low-grade gasoline for luxury cars will cause engine knocking, power loss, and breakdown of the engine parts due to the low octane number, which cause short engine service life. But if you use high-grade gasoline (high octane number) for normal cars (which are designed for using 95, 92 gasoline), your car will not able to burn off all the fuel and lose power. Thus, many car owners prefer high-grade fuel. In fact, the higher grade doesn't stand for the better result, even for luxury cars.

Some people prefer tires that are imported from other countries, and Mr. B is one of them. After a few times, he found that the new tires from overseas are not applicable. The new tires got swollen on the side from one time of mountain road driving.

Reminder: The smooth pavement in abroad is much different from the domestic roads. Tires suitable for foreign road condition don’t necessarily have good performance in domestic roads, especially for the side impact resistance. With the cooperation with domestic manufacturers, according to domestic road condition, foreign tires brand will add a layer of curtain cloth in the side of the tire to improve the side impact resistance. The joint venture of tires can completely replace the foreign brands and the price is more affordable.

Car owner C’s new car has just passed the first warranty of 500 km, a random high speed of 200 km has frightened Mr. C who just learned how to read oil dipstick, he was worried about the lack of engine oil, so he poured in another bottle given by his friend. Soon, his new car started to burn the oil.

Reminder: There is too much engine oil. When the engine is working, the crankshaft handle and connecting rod will intensely stir, it will reduce the engine inner power and increase the oil splashed on the cylinder wall, and thus the oil is burned. The amount of engine oil should be controlled between the upper and lower scale of oil dipstick.