How Many Kilometers Should a New Car Have Before Driving on the Highway?

3 Answers
OGabriella
07/29/25 5:48pm
A new car should generally wait until after the first maintenance service, which is around 3,000-5,000 kilometers, before driving on the highway. This is because the initial oil used before the first service contains a significant amount of debris, and driving at high speeds with this oil can greatly increase engine wear and even cause abnormal damage. As a result, the car may not be in optimal condition after the break-in period. Additional tips for the break-in period: 1. Avoid hard braking: Hard braking not only shocks the braking system during the break-in period but also increases the impact load on the chassis and engine. It is best to avoid hard braking within the first 300 kilometers of driving. 2. Avoid overloading: Running a new car at full capacity during the break-in period can damage the components. Therefore, within the first 1,000 kilometers, the load should generally not exceed 75%-80% of the rated capacity. 3. Highway driving: Driving long distances during the break-in period increases the continuous working time of the engine, which can lead to increased wear. It is recommended to maintain a speed of 120 km/h with the engine RPM not exceeding 3,000. If the RPM exceeds 3,000, consider reducing the speed to keep it at or below 3,000 RPM. During long trips, take breaks at service areas for about ten minutes. 4. Avoid premature oil changes: The initial oil in a new car is specifically designed for the break-in period, with low viscosity, excellent heat dissipation, cleaning, and antioxidant properties. Some manufacturers even add grinding agents to aid the break-in process. Therefore, follow the manufacturer's recommended schedule for oil changes during the break-in period and avoid changing the oil too early.
Was this review help?
1
3
Share
ReeseLynn
08/14/25 9:26am
Nowadays, new cars are built with advanced technology, so there's no need for a special break-in period. The manual says you can drive on the highway within the first 2,000 kilometers, but I would avoid aggressive driving like flooring the accelerator. Don't constantly rev the engine into the red zone, and make sure to use different gears. New components like tires and brake pads will adapt after about 300 kilometers of driving. I took my new car on the highway just last week, cruising steadily at 100 km/h. Remember to check the tire pressure in advance—don't overinflate them—and wait for the engine coolant and oil temperatures to normalize before speeding up.
Was this review help?
15
1
Share
Expand All
DamianDella
10/14/25 2:22am
My colleague just bought an SUV and took it on the highway for delivery the next day. Nowadays, cars undergo cold running-in before leaving the factory. As long as you don't exceed 4000 RPM and 120 km/h, you can drive freely. When I bought my car two years ago, the salesperson said just keep the driving gentle within the first 1000 kilometers. Just avoid driving continuously for too long—take a break at a service area every two hours to let the car rest. Be gentle until the oil temperature rises, and there's no need to strictly adhere to a 3000-kilometer break-in period like with older cars.
Was this review help?
10
3
Share
Expand All
More Forum Discussions

What Causes Difficulty Starting Due to Low Idle Speed?

The reasons for difficulty starting due to low idle speed are as follows: Intake Manifold or Various Valve Leaks: When air, gasoline vapor, or combustion exhaust that should not enter the intake manifold infiltrates, it causes the air-fuel mixture to become too rich or too lean, leading to abnormal engine combustion. If the leak affects only certain cylinders, the engine may experience severe shaking, particularly impacting cold-start idle conditions. Excessive Carbon Buildup in Throttle Body and Intake Passage: Excessive carbon deposits and dirt in the throttle body and surrounding intake passages alter the cross-sectional area of the air passage, preventing the control unit from precisely regulating idle air intake. This results in an overly rich or lean mixture and abnormal combustion. Common causes include: oil contamination or carbon buildup on the throttle body; oil or carbon deposits in the intake passages around the throttle body; and oil or carbon buildup on the idle speed stepper motor, duty cycle solenoid valve, or rotary solenoid valve.
9
3
Share

How to Drive an Automatic Transmission Car for Fuel Efficiency?

Methods for saving fuel in an automatic transmission car: 1. Shift gears appropriately: Generally, the basic gears of an automatic transmission car are P (Park), R (Reverse), N (Neutral), and D (Drive). It's important to use the automatic gearshift properly to save fuel more efficiently; 2. Avoid sudden acceleration: Since automatic transmission cars shift gears automatically, there is a certain interval during the process. Therefore, avoid stomping on the accelerator pedal suddenly, as it will increase fuel consumption; 3. Avoid hard braking: Excessive braking increases fuel consumption, so it's better to maintain a steady speed while driving and use gentle braking whenever possible; 4. Coast downhill in D gear: Coasting in neutral not only fails to save fuel but also increases some risks. A more fuel-efficient method is to coast downhill at a certain speed while keeping the car in D gear and releasing the accelerator pedal, allowing the engine to automatically cut off fuel supply.
3
4
Share

Can Dishwashing Detergent Be Used for Car Washing?

Dishwashing detergent should not be used for washing cars. Dishwashing detergent is an alkaline cleaning agent that can cause significant damage to car paint. If used for car washing over a long period, the car's surface will gradually lose its shine. The hazards of using dishwashing detergent for car washing are as follows: 1. Damage to Car Paint: Dishwashing detergent has the effect of removing oil stains. Because of this characteristic, it can also strip away the car wax that protects the paint. Once the wax is removed, the paint becomes vulnerable to damage, and the car may lose its original luster or even develop a whitish appearance. 2. Corrosion of Rubber Protective Strips: Dishwashing detergent is alkaline and can corrode the rubber protective strips on the car body, causing them to discolor, lose elasticity, or even break. For this reason, professional car washes use neutral cleaning products that protect the car's surface. 3. Difficulty in Thorough Cleaning: Dishwashing detergent produces abundant foam, and self-washing is often limited in scope, making it difficult to clean the car thoroughly. After drying, streaks may appear, affecting the car's appearance.
10
4
Share

What Causes the Popping Sound from the Exhaust Pipe When Letting Off the Throttle?

The popping sound from the exhaust pipe when letting off the throttle can be caused by various reasons, including aging of the exhaust pipe, malfunction of the car's three-way catalytic converter, issues with the ignition system, or abnormal concentration of the air-fuel mixture. The specific causes are as follows: Aging of the Exhaust Pipe: When a car is too old, the exhaust pipe is prone to aging, which can lead to loosening, detachment, or holes, ultimately causing abnormal noises from the exhaust pipe. This issue is relatively simple to resolve—just re-secure or replace the exhaust pipe. Malfunction of the Car's Three-Way Catalytic Converter: If the three-way catalytic converter malfunctions, it cannot properly purify exhaust gases, leading to blockages and pressure buildup inside, which causes abnormal noises from the exhaust pipe. In this case, it is necessary to visit a repair shop or a 4S store for professional inspection and repair.
1
1
Share

Which gear is the forward gear in an automatic transmission car?

In an automatic transmission car, the D gear is the forward gear. The D gear is the commonly used gear position. When you shift into D gear and press the accelerator, the car will move forward. The P gear is the parking gear, generally used when turning off and parking the vehicle. Many vehicles require shifting into P gear before power can be turned off, the key can be removed, and the doors can be locked. After shifting into P gear, the vehicle's transmission will be locked. The R gear is the reverse gear, used when reversing. When this gear is engaged, the car can move backward. The N gear is the neutral gear, which means the vehicle's gear lever is not placed in any forward or reverse gear position. The S gear is the sport gear, also known as sport mode. When this gear is engaged, the car will shift up slowly or downshift early, keeping the engine at higher RPMs and increasing torque output to obtain greater power, commonly used when overtaking. The L gear is the low gear, also known as the climbing gear. Its function is to reduce speed and increase torque, commonly used when climbing hills (equivalent to the 1st gear in a manual transmission).
18
4
Share

What is the function of the automatic transmission handle button?

The function of the automatic transmission handle button is to prevent incorrect gear shifting. The benefits of preventing incorrect gear shifting include: 1. Protecting the transmission, preventing damage to transmission gears, and extending the lifespan of the transmission; 2. Eliminating potential safety hazards caused by misoperation. If the gear is shifted incorrectly, the vehicle may unexpectedly move forward or backward, which could lead to accidents. The button on the automatic transmission handle is called the lock button, also known as the gear lock. Situations where the automatic transmission handle button needs to be pressed: 1. When shifting into R (Reverse) gear; 2. When shifting out of P (Park) gear; 3. When shifting into P (Park) gear. In these three scenarios, the button must be pressed to shift gears. Gears that could potentially cause reverse impact to the transmission will be locked, and the lock button must be pressed to unlock during gear shifting. For example: shifting from R to P requires pressing the button; shifting from P to R requires pressing the button; shifting from R to D (Drive) does not require pressing the button; shifting from D to N (Neutral) does not require pressing the button.
20
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.