One of the most common pieces of advice among drivers is the need to change engine oil every 5,000 kilometers. This rule has long been considered a given in the automotive world, but with the advancement of engine and oil technology, many have started to ask: Is this rule still valid? Or is it one of those outdated habits that no longer make sense?

In the past, cars were built with less advanced technology, and oil would quickly lose its properties due to high heat and fuel combustion residues. Moreover, the oils used were mostly conventional (mineral) and couldn't withstand harsh operating conditions for long, so changing the oil every 5,000 km was a preventive step to protect the engine.

Today, however, most modern vehicles use synthetic or semi-synthetic oils, which offer high resistance to wear and heat and maintain their viscosity for longer periods. Modern engines are also equipped with sensors and advanced systems that monitor oil condition and alert the driver when a change is actually needed.

In addition, some manufacturers recommend oil changes every 10,000 or even 15,000 km, depending on the type of oil used, driving conditions, and the nature of the vehicle. This doesn't mean you should ignore oil maintenance altogether — you should always refer to your vehicle’s Owner’s Manual to follow the manufacturer’s specific recommendations.

That said, there are certain situations where shortening the oil change interval is advised, such as:

- Driving in dusty or very hot environments

- Frequent stop-and-go traffic in the city

- Towing or carrying heavy loads

- Regular short-distance driving without properly warming up the engine

In conclusion, changing the oil every 5,000 kilometers is no longer a strict rule for all cars — it's a general principle that may be outdated in some cases. Follow your car's specific recommendations and the type of oil you use, and don’t rely on a fixed number without considering your driving habits and conditions.