The new cylinder has been running in for many kilometers, how to run in the new cylinder?

If it is a new cylinder block, it can be run in 2000 kilometers and change the engine oil once If it is a new car, it can be run in 5000 kilometers to do the first warranty provided by the 4S store for free. 4S shop professional technician, 10 minutes to solve. 】

Hello, the best thing is to run in for 3,000 kilometers (during this period, don't load and don't bombard the throttle in neutral) and then change the oil It's fine, I hope it can solve your doubts [car problems, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, it is recommended that you run in for 3000 kilometers before changing the oil. I hope it can help you and I wish you a happy car. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

When it comes to the first time I go to the 4S shop for maintenance, I often treat this as a stage.

The most suitable should be 3000 kilometers with a speed of no more than 80

The new cylinder is run in for 3000 kilometers, and within the first 200 kilometers, the engine should be minimized to accelerate sharply, run at high speed and long distances, so that it is easy to run in unevenly, and the cylinder will be pulled in serious cases. It is recommended that the early speed should not exceed 80 yards, the bar head is old, the cylinder block is new, there is always a run-in time, according to this method to run in about 200 kilometers, and then run normally. [Car questions, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

New cylinder change run-in method: 1. Preheat before starting: after the engine starts, as long as it can maintain a stable speed, you can start the car, before the water temperature rises, properly control the speed, and wait for the water temperature to be normal after driving.

During the run-in period, avoid slamming on the accelerator and avoiding slamming on the brakes; 2. Don't drive at high speeds: There are speed regulations in the initial driving stage of new cars, and the engine speed and vehicle speed are working at medium speed.

Generally speaking, the engine speed during the run-in period should be strictly regulated between 2000-4000 rpm; 3. Avoid envy and talk about overload: the new car will cause damage to the parts when it is fully loaded.

Therefore, in the first 1000 kilometers, domestic cars cannot exceed 75%-80% of the rated load; Imported cars cannot exceed 90% of the rated load.

In addition, try to choose a better quality road surface to avoid excessive vibration, collision or emergency braking, so as to reduce the load on the body and power system; 4. Do not remove the speed limiter in advance: the speed limiter is a throttling device installed between the carburetor and the intake pipe.

The driver should not remove it in advance, but after the initial 1000 kilometers in conjunction with the initial driving maintenance.

Imported cars generally do not add speed limiters, and completely rely on the driver's brother to control the speed by himself.

Millions of car purchase subsidies.

Just ran into it for about 300 kilometers after changing the cylinder, the speed did not exceed 50 yards per hour, and there was no load during the run-in. Be careful not to drive at high speeds, avoid driving long distances, avoid emergency braking, shift gears in time, add better quality gasoline, and carry out a comprehensive inspection and maintenance after completion.

It should be noted that: 1) When driving a car with a tachometer, change to a nearby high gear. The maximum engine speed allowed for a short period of time is 5500 rpm when the pointer reaches the red indicator area.

The maximum speed allowed in each gear is: 40 kmh in first gear, 65 kmh in second gear, 100 km/h in third gear, 135 kmh in fourth gear, and 165 kmh in fifth gear.

2) Avoid the engine running at unnecessarily high speeds, and switch to high gear as soon as possible is conducive to saving fuel and reducing noise.

3) The engine speed should not be too low when driving, and the engine can only be hung to a low gear when it is working hard.

4) The rotational speeds and speeds listed in the manual are for normal temperature engines only. When the car is cold, whether in neutral or other gears, don't let the engine work at the highest speed.

5) New tires don't have the best adhesion when they start using it. As a result, new tires also need to be run-in. When driving for the first 100 kilometers, be slow and drive carefully.

1. Precautions for phases according to mileage.

The new car has been cold-run-in before leaving the factory, but in order to maintain the best condition of the mechanical system and prolong the service life in the future, it is recommended that the first 3000 kilometers be driven and maintained according to the following requirements:

kilometers, the new friction brake pads have not yet reached 100% braking effect, and there should be an amount of advance in braking, and in the first 200 kilometers, the tire friction is not enough, so it is necessary to use more force than normal when braking. This also applies when you have just changed to a new tire or a new brake pedal.

2. In the first 500 kilometers, the new tires have not yet reached the best adhesion, and emergency braking should be avoided when turning quickly.

3. In the first 2,500 kilometers, you should drive gently, with a speed of no more than 100,000 and a speed of no more than 2,500 rpm.

After a routine maintenance (using the original engine oil), the cooperation between all the moving parts in the car reaches a smooth state of movement, and the vehicle can be driven with the best performance.

Second, the control of the speed of the vehicle during the run-in period.

At 1000 to 1500 km, the engine speed and vehicle speed can be gradually increased to the maximum permissible speed. It is not allowed to drive in 1st gear or high speed for a long time; Do not make the speed reach the limit in each gear, and the speed of each gear should be controlled in the range of 3 4 of the maximum speed, roughly: 20 kilometers in 1st gear, 30 kilometers in 2nd gear, 40 kilometers in 3rd gear, 50 kilometers in 4th gear, 60 kilometers in 50 kilometers in 5th gear.

Third, the benefits of new car running-in.

The automobile is a mechanical product, in which many mechanical parts are working with each other, due to the limitation of machining accuracy and other reasons, the mutual cooperation between them does not reach a very smooth state. A new car that has just left the factory, or a car that has just been overhauled, needs to be run-in.

Run-in is to rub the occlusal parts between each part to make the occlusal surface smoother and the mutual cooperation more tight. After a better run-in, the overall condition of the vehicle will be higher, such as the vehicle is more energetic, more fuel-efficient, less noisy, more flexible in handling than before the run-in.

Automobile running-in not only includes the run-in of the engine, but also includes the running-in of the gearbox, the running-in of the brakes, etc., and the running-in of the automobile is the general name of the running-in of these main components.

3. Precautions for vehicle running-in.

1. Speed limit: stipulate the maximum speed of the vehicle, so that each rotating part is evenly run-in.

2. Load reduction: The new car should be lower than the specified load capacity or number of people when loaded, and it should not be overloaded, because overload will increase the burden on the engine, transmission, transmission system, suspension system and other components, increase wear and tear, and cause damage to the vehicle.

3. Rational use of fuel: no oil can be lowered or exceeded, and clean fuel should be added. In addition, try to choose a better quality road surface to reduce the load on the body and power system.

Things to pay attention to when grinding cylinders in new cars:

1.Control engine speed:

The run-in period is not to control the speed of the car, but to control the speed of the engine, the engine speed is controlled between 2000-3000rpm (gasoline engine) The load of the engine is the lightest, due to the poor lubrication during the run-in period, too high speed is easy to strain the components, the speed is too low (the gear is too high), the power of the engine to do work becomes an impact, which will also cause wear, so it is necessary to change gears frequently to control the engine speed. Automatic transmission cars only need to control the engine speed below 3000rpm.

2.Load Reduction:

During the run-in period, because the best lubrication state can not be reached, the heavier load will aggravate the wear, so the load should be minimized in the first 500 kilometers, and the maximum load should not exceed 50% during the 3000 kilometers run-in period, and the load will be gradually increased after the running-in period. In addition, the braking system is not fully running-in, the braking effect is not good, and the load also needs to be lightened.

3.Don't change the oil too soon:

The initial oil of the car is a special lubricating oil during the run-in period, which requires low viscosity, good heat dissipation, superior cleaning and oxidation resistance, and some car factories have also added abrasives that are conducive to the run-in, so the oil should not be replaced too soon during the run-in period. There is no need to worry about excessive abrasive debris as they will remain in the filter and the oil can be changed at the time specified by the manufacturer.

4.Do not use additives:

New car owners cherish their new cars very much, and they are also the most likely to be persuaded to buy some so-called "protective products" at this time. After additives are added to the engine oil during the run-in period, it will seriously affect the run-in effect, prolong the run-in period, and even produce a chemical reaction with the oil additives, forming oil sludge or bubbles, which will reduce the oil pressure, and at the same time make the lubrication worse and accelerate the speed of wear, so do not use any additives during the run-in period.

5.Warm up before you start:

The new car must be warmed up before starting, the so-called preheating is actually to give the engine a full lubrication time, because the lubricating oil can not reach the friction surface immediately after starting, so it is necessary to wait until the lubricating oil has reached all the parts that need to be lubricated (especially turbocharged models) before starting. The time for adequate lubrication varies depending on the air temperature, oil viscosity, and permeability of the oil filter, so it takes at least one minute to ensure that the lubrication is in place.

Due to processing and assembly errors, the frictional resistance of the moving parts of the new car is always much greater than normal when it starts to run, and the running-in (also known as walking) effect in the early stage of the car will have a great impact on the service life, working reliability and economy of the car. Therefore, the run-in regulations must be strictly implemented when using new cars.

1. Run-in regulations for new cars within 1000 kilometers:

1) Never drive at full speed.

2) - Generally not to drive at a speed of more than 100 km/h.

3) Avoid driving at high speeds in all gears.

2) The run-in of the vehicle between 1,000 and 15,000 km: it can be gradually increased to the maximum speed or at the maximum permissible speed of the engine.

2. After the run-in period, attention should be paid to:

1) When driving a car with a tachometer and shifting into the approaching high speed, the maximum engine speed allowed for a short time is 5 500 rpm when the pointer reaches the red indication zone at the latest. The maximum permissible speed in each gear is 40 kmh in the first gear, 65 kmh in the second gear, 100 kmh in the third gear, 135 km/h in the fourth gear, and 165 kmh in the fifth gear.

2) Avoid running the engine at unnecessarily high revs, and switch to high gear early to save fuel and reduce noise.

3) Do not drive the engine speed too low, and only change to low gear when the engine is working hard.

4) The speeds and rotational speeds listed in the instructions are only applicable to engines with normal temperatures. When driving cold, do not allow the engine to work at the highest revs, whether in neutral or in other gears.

5) New tires don't have optimal adhesion when they start with use, so new tires also need to be walked, slower for the first 100 km, and driven with care.

6) The new brake friction plate also needs to be run-in, in the first 200 kilometers of driving, there is not yet the ideal friction, if the braking effect is slightly worse at this stage, the pressure of the pedal can be appropriately increased. The same applies after each subsequent replacement of the brake pads.

7) Under possible conditions, the new car should avoid continuous driving for a long time during the run-in period, so as to avoid the engine and chassis parts continue to work for too long, resulting in the aggravation of the wear of the parts, and directly affect the service life of the car. Also avoid running at full load, generally in the first 1000 kilometers of driving, it is best to run below 80% of the rated load. Also, try to avoid driving at high speeds, and don't go faster than 70% of the top speed with the throttle open for the first 2,000 km/h.

8) during the run-in of the new car, the driver should heat up in situ after the new car starts at the beginning, and then start after the water temperature rises to the working temperature range, and should choose a good road surface during driving, and slow down when the road condition is poor; When driving, the throttle should be smaller, the operation should be light, once the engine or chassis sound is found to be abnormal, it should be stopped to check the fault in the embryonic period.