How Often Should You Service Your Car? (Australian Driving Guide)

As a general rule for most modern petrol and diesel vehicles on Australian roads, manufacturers recommend a minor service every 6 months or 10,000 kilometres, whichever comes first.

For newer vehicles utilising fully synthetic oils, this interval may be extended to 12 months or 15,000 kilometres in official logbooks. However, time matters just as much as distance travelled. Even if your car only travels 5,000 kilometres in a year, engine oil naturally degrades, absorbs moisture from cold starts, and experiences chemical breakdown over time.

Most motorists do not realise that typical daily driving across South-West Sydney—frequent short trips under 10 km, stop-and-go traffic along Stacey Street or the Hume Highway, and prolonged summer heat—is classified by vehicle manufacturers as "severe service conditions".

Short trips prevent the engine and exhaust system from reaching optimal operating temperatures. Unburnt fuel and water vapour can dilute the engine oil, leading to accelerated sludge build-up, carbon deposits on intake valves, and premature turbocharger bearing wear.

Delaying a service may save a small sum in the short term, but it almost invariably leads to much larger repair bills down the track.

Old, contaminated oil loses its lubricating film, creating metal-on-metal friction inside the engine. Overdue air filters restrict combustion air and increase fuel consumption. Unchecked brake pads can wear down to bare metal backing plates, ruining expensive disc rotors.