The odometer remains one of the strongest psychological tools in car sales. For many buyers, low mileage signals reliability, while high mileage feels like a warning sign.
But modern vehicles are built to last longer than ever, making mileage only part of the story. A car’s true condition depends on maintenance history, driving habits and how it has aged mechanically.
A high-mileage vehicle, generally above 150,000 kilometres, carries risks because every component has a service life. While an engine block may run for hundreds of thousands of kilometres, parts such as timing belts, water pumps and alternators often wear out much sooner.
Buyers of high-mileage cars can inherit repairs the previous owner chose to avoid.
Mileage also affects more than the engine. Suspension systems endure millions of compressions, leading to worn bushings, weak shock absorbers, vibration and a loose driving feel.
Seals and gaskets harden with age, often causing oil leaks, especially where servicing was neglected.
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The appeal of a low-mileage car is easier to understand.
It often feels fresher, with less wear on the cabin, newer safety features and updated technology such as Apple CarPlay. Many are still covered by manufacturer warranties, giving buyers extra peace of mind. Starting with lower mileage can also delay major repair costs for years.
However, low mileage has its own risks. Cars left standing for long periods can be more troublesome than regularly driven ones.
Vehicles used only for short trips may never reach normal operating temperature, usually between 90°C and 105°C, preventing moisture and carbon deposits from burning off. This can create sludge that blocks oil passages and damages the engine.
Time is equally harsh on unused vehicles. A ten-year-old low-mileage car may still have dry-rotted tyres, brittle belts and a weak battery.
Brake rotors can rust, while brake fluid absorbs moisture over time, potentially causing corrosion in calipers and ABS components regardless of mileage.
The modern used-car market has shown that maintenance matters more than numbers on a dashboard.
Highway kilometres are far less punishing than stop-start urban driving. A car cruising steadily at 100 km/h faces less strain than one with half the mileage spent in traffic, enduring repeated cold starts and constant braking.
That is why a high-mileage car with a full service history and regular oil changes can be a safer purchase than a low-mileage car with no records.
Low-mileage cars offer freshness and longer ownership horizons, but usually at a premium price and with risks from underuse. High-mileage cars are cheaper, but buyers must budget for wear-and-tear replacements.
In the end, the real value of any used car lies not in how far it has travelled, but how well it was cared for every kilometre of the way.