What is the lifespan of domestic engines in kilometers?

[Nicola]

Domestic engines typically have a lifespan ranging between 200,000 to 300,000 kilometers. Ways to extend engine lifespan: Perform regular maintenance, use high-quality engine oil and oil filters. Replace transmission oil periodically with quality spark plugs to prevent clogging. Regularly clean the fuel system, maintain the radiator, and use premium lubricants. Adhering to these practices can effectively prolong the engine's service life. Factors affecting engine lifespan: The actual lifespan of an engine depends on individual driving habits, maintenance routines, and environmental conditions among other comprehensive factors. Ensuring the engine operates at normal temperature is crucial for optimal performance in terms of operational resistance, wear and tear, and stability among components.

[MacAdam]

Having repaired cars for over a decade, I've handled quite a few domestic engines. Nowadays, mainstream models like Changan's Blue Core and Geely's Thor can easily clock 200,000 kilometers with proper maintenance. Just recently, I worked on a 2014 Haval H6 that was still running smoothly at nearly 380,000 kilometers on the odometer. The key is regular oil and filter changes every 5,000 km, periodic carbon deposit cleaning, and keeping the radiator clean. In cities with heavy traffic, I recommend shortening the maintenance intervals. I've seen many owners neglect coolant changes, resulting in cylinder scoring at just over 100,000 km. With proper care, 200,000 km is really just the starting point—I'm confident about that.

[SanBethany]

As an office worker, my domestic SUV has clocked 110,000 kilometers in five years without any engine issues. Domestic cars have indeed made significant progress nowadays. Research shows mainstream manufacturers' testing standards exceed 300,000 kilometers, with brands like Lynk & Co offering lifetime warranties. However, I've noticed lifespan correlates with usage habits - avoid aggressive throttle when cold starting, and keep RPM below 2,000 until the engine warms up. My neighbor Lao Wang's MPV from a certain brand still runs Didi rides after 10 years and 260,000 kilometers. For new car buyers, focus on lifetime warranty policies for the three major components (engine, transmission, chassis) - it saves tremendous hassle later. Nowadays, domestic technology isn't far behind joint ventures anymore.

[KaiFitz]

From the perspective of automotive R&D engineers on domestic engine lifespan: Current mainstream brands generally achieve B10 lifespans exceeding 240,000 km (indicating 90% of engines can operate without major overhaul at this mileage). For turbocharged engines, thermal management is crucial - models like Changan's Blue Core have undergone 400-hour full-speed full-load tests, equivalent to 300,000 km of actual operation. Naturally aspirated engines demonstrate greater durability, with cast iron cylinder blocks showing better heat resistance than aluminum ones. Field tests indicate major overhauls are only required when cylinder liner wear exceeds 0.08mm - given current mainstream engine material strength, urban driving conditions for 200,000 km won't cause failure. Critical note: Particulate filter maintenance is especially vital for turbocharged engine longevity.