Is it necessary to add break-in additives when refueling a new car?
3 Answers
It is not necessary to add break-in additives when refueling a new car. The key for a new car is the break-in period, during which the metal components of the engine need to make contact, break in, and become familiar with each other. It is crucial to quickly bring the engine's friction surfaces into good working condition, drive the car correctly for proper vehicle break-in, use high-quality engine oil products, and pay attention to the maintenance of the oil filter and lubrication system. Generally, high-quality break-in additives are composed of antioxidants, corrosion inhibitors, and some viscosity improvers, which provide certain protection for the engine, and adding them will not have any adverse effects. Most inferior products are simply anti-wear agents, and reducing friction may prolong the break-in period, which is not conducive to the break-in of a new car.
As someone who frequently studies automotive technology, I believe adding break-in additives when fueling a new car is basically unnecessary. Modern car engines undergo precision machining and testing before leaving the factory, with advanced materials and processes. For example, my car has never used them and has been running perfectly fine for years. Manufacturers typically account for the break-in period during the design phase, so additional additives might actually create unnecessary burdens, such as contaminating the fuel system or affecting sensors. The focus during the break-in period should be on driving habits, like avoiding sudden acceleration or high-speed driving, allowing components to naturally adapt. In short, saving this money is more cost-effective—it’s more practical to spend it on regular maintenance.
From a maintenance perspective, I recommend not rushing to add break-in additives when fueling a new car. Most vehicle manuals explicitly state that it's not recommended because engine manufacturing technology has advanced, and the engine is already properly broken in at the factory. Adding such additives may pose risks, such as clogging fuel injectors with inferior products or causing abnormal wear. The key during the break-in period is gentle driving—maintain moderate to low speeds for the first 1,000 kilometers and avoid full loads. If you really must add them, choose reputable brands, but honestly, it's better to save that money for the first scheduled maintenance. Regularly checking engine oil and filters is more important to ensure the engine runs healthily.
