How to reset the Grand Cherokee's oil life to zero: first power on the vehicle without stopping, then continuously press the tripod oil, and the oil life can be reset.

Oil lubricates the engine and prevents the metal in the engine from rubbing against each other and damaging the engine.

In addition, it can cool the engine, prevent corrosion and rust, seal to prevent leakage, and absorb shock and cushioning, in short, protect the engine.

Precautions for oil change: First of all, pay attention to the model of car oil.

The higher the grade of car oil, the greater the viscosity.

Moreover, cars have fixed models when they leave the factory, and many models have different car oils.

For example, when the engine is designed, it is set to 20% oil.

If the engine is suitable, the car will naturally run faster.

Adding 40% oil will thicken the oil and hinder the power, resulting in a decrease in power.

There are also maintenance intervals.

It is recommended to generally choose 7000 kilometers as the reference value.

While it will vary from vehicle to vehicle, as far as motor oils on the market go, the quality is relatively good.

According to the standard of 7,000 kilometers, there is basically no problem driving the vehicle in urban areas.

Of course, if the vehicle itself is too worn, it still depends on the actual situation.

Finally, check the oil level, which is something you must pay attention to after changing the oil.

Because the amount of oil, whether it is too much or too little, will have a bad impact on the car.